Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
Full-Text Search:
Science of Surveying and Mapping
FQ: bimonthly
AD of Publication: China
Lanuage: English
ISSN: 1009-2307
CN: 11-4415/P
YP: 1976
Recommended Journals
Beijing Surveying and Mapping
Surveying and Mapping
Engineering of Surveying and Mapping
Science of Surveying and Mapping
Acta Geodaetica et Cartographica Sinica
Geomatics & Spatial Information Technology
Surveying and Mapping of Geology and Mineral Resources
Geospatial Information
地球空间信息科学学报(英文版)
Modern Surveying and Mapping
Science of Surveying and Mapping
2010 -03
Catalog
Web-based SDSS for undiscovered mineral resource assessment LIU Shuo①②,QIAO Yan-you①,WEN Qing-ke①②,LI Yang①②(①Institute of Remote Sensing Applications,Chinese Academy of Sciences,Beijing 100101,China;② Graduate School of Chinese Academy of Sciences,Beijing 100049,China)
The in-situ replacement calculation method of choosing principle component matrix HEI Zhi-jian,ZHANG Hong-tian,ZHOU Qiu-sheng(Dept.of Surveying and Mapping,Heilongjiang Institute of Technology,Harbin 150050,China)
The dynamical equation for triaxial elastic Earth rotation ZHANG Han-wei,WANG Qin-Lin,GUO Zeng-zhang(School of surveying & land information engineering,Henan polytechnic university,Jiaozuo 454003,China)
Simulation test for linear CCD look angles calculation method YUE Qing-xing①③,QIU Zhen-ge②③,JIA Yong-hong①,ZHANG Chun-ling④(①School of Remote Sensing and Information Engineering,Wuhan University,Wuhan 430079,China;② Institute of Computing Technology,Chinese Academy of Sciences,Beijing 100080,China;③Chinese Academy of Surveying and Mapping,Beijing 100039,China;④Henan Bureau of Surveying and Mapping,Beijing 450003,China)
Influence of GPS antenna phase center model change on GPS data processing DING Xiao-guang①②,ZHANG Qin①,HUANG Guan-wen①,GUAN Jian-an①(①School of Geological Engineering and Surveying Engineering Chang'an University,Xi'an 710054,China;②Earthquake Administration of Shaanxi Province,Xi'an 710068,China)
The Wavelet variance estimation methods of frequency stability for atomic clocks of navigation satellites FENG Sui-liang,SONG Li-jie(Surveying and Mapping Institute of Information Engineering University,Zhengzhou 450052,China)
Research on multi-star observation and astronomical longitude and latitude calculation based on optical wide field measurement equipment WANG Kang-xiang①②③,HE Xin①,WEI Zhong-hui①,YU Hui-long①②,WANG Dong-he①②,WEN Ying-hui①②③(①Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China;②Graduate School of Chinese Academy of Sciences,Beijing 100039,China;③ Huayin Ordnance Test Center of China,Huayin 714200,China)
Assessment of map quality based on attribute mathematical theory YIN Li,WEN Chang-ping(Department of Urban Construction,Shaoyang University,Shaoyang 422000,China)
The research of calculating the land gravity anomaly by using the inverse Vening Meinesz formula PANG Zhen-xing①,ZHANG Chuan-ding②,XIAO Yun①(①Xi'an Research Institute of Surveying and Mapping,Xi'an 710054,China;②Institute of Surveying and Mapping,Information Engineering University,Zhengzhou 450052,China)
Grey system model for the ultra-rapid satellite clock error predicting LI Wei①,CHENG Peng-fei①,BEI Jin-zhong①②(①Chinese Academic of Surveying and Mapping,Beijing 100039,China;②School of Geodesy and Geomatics,Wuhan University,Wuhan 430079,China)
Usability evaluation of electronic maps based on set pair analysis SUN Qing-zhen①,REN Zhong-bin②,PAN Chun-feng①(① Zhengzhou Institute of Aeronautical Industry Management,Zhengzhou,450015,China;②Institute of Surveying and Mapping,Information Engineering University,Zhengzhou 450052,China)
Ridge estimate-based method for camera calibration YU Ying,CHEN Ji-hua(Institute of Surveying and Mapping,Information Engineering University,Zhengzhou 450052,China)
A new approach to inequality constrained least-squares adjustment XIE Jian,ZHU Jian-jun(Department of Geomatics of Engineering,Central South University,Changsha 410083,China)
A lightweight domain knowledge-hidden model of integrating open map services WU Hua-yi①,ZHANG Lei①,LIU Zhe②,XU Kai-ming③(①State Key Lab of Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan University,Wuhan 430079,China;②Network and Information Center,CWRC,Wuhan 430079,China;③Heilongjiang Geomatics Center of SBSM,Harbin 150086,China)
The integrated forecasting of building subsidence based on least square support vector machine regression WANG Ji-gang①②③,HU Yong-hui①(①National Time Service Center,Xi'an 710600,China;②Graduate University of Chinese Academy of Science,Beijing 100039,China;③HuaiHai Institute of Technology,Lianyungang 222001,China)
Improved positioning model without control point for high-resolution remote sensing satellite and its application CHEN Li-qi①②,TANG Xin-ming②,ZHAI Liang②,WU Rong-tao③,SU Wen-bo②(①Henan Polytechnic University,Henan Jiaozuo 454001,China;②Chinese Academy of Surveying and Mapping,Beijing 100039,China;③Henan Land and Resources Inventory and Planning Institute,Zhengzhou 450053,China)
A method of division of urban fringe based on message entropy——A case study in Nanjing city CAI Dong,LI Man-chun,CHEN Zhen-jie,WEI Wei,HU Wei(School of Geographic and Oceanographic Science,Nanjing University,Nanjing 210093,China)
Digital image atlas quality control analysis based on fuzzy comprehensive evaluation model LUO Shao-hui,HUANG Bing-qiang,RUAN Ming(Nanning Exploration﹠Survey Institute,Nanning 530001,China)
A calculative model of screen saturation based on region partition DENG Hong-yan①②,WANG Ying-jie①(①Institute of Geographical Sciences and Natural Resources Research,CAS,Beijing 100101,China;②Air Force Command College,Beijing 100097,China)
Detection and repair for GPS cycle slips using carrier phase rate and Chebyshev polynomial method CHEN Lei①②,LIU Li-long①,LI Huan-bo①(①Department of Civil Engineering,Guilin University of Technology,Guangxi Guilin 541004,China;②East China Mineral Exploration and Development Bureau for Non-ferrous Metals,Nanjing 210007,China)
Application of adaptive Kalman filter to GPS/DR integrated navigation CHEN Yuan①,ZHANG Xiao-hong②,GUO Fei②,XIONG Xu③,LI Hai-ying④(①Guangdong Provincial Waterways Project Administration Office of Using Foreign Funds,Guangzhou 510115,China;②School of Geodesy and Geomatics,Wuhan University,Hubei 430079,China;③Chengdu Institute of Survey and Investigation,Chengdu 610081,China;④GuangZhou Institute of Measuring and Testing Technology,Guangzhou 510030,China)
Total station line-height surveying and its application GUO Zong-he,ZHENG Jin-feng,HE Ke-qiang(School of Civil Engineering,Qingdao Technological University,Qingdao 266033,China)
The application of digital level automated monitoring system in the dam deformation monitoring HAN Xian-quan①②③,LI Duan-you②③,TAN Yong②③,ZOU Shuang-chao②③(①State Key Laboratory for Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan 430079,China;②Changjiang River Scientific Research Institute;Center on Water Engineering Safety and Disaster Prevention of the Ministry of Water Resources,Wuhan 430010,China;③Yangtze River Scientific Research Institute,Wuhan 430010,China)
Application and analysis on the deformation monitoring project of the Qingdao gulf bridge HAN Xiao-dong①,HUANG Peng①,WANG Xin-wen②,ZHANG Zhi-gang③(①Shandong University of Science and Technology,Qingdao 266510,China;②Engineering Consultants' Department of Qingdao Gulf Bridge,Qingdao 266041,China;③Qingdao Luqiao Group,Qingdao 266000,China)
The application of DLT in the solving process of building height measurement LI Er-sen①,ZHANG Bao-ming①,WANG Yong-gang①②,QI Jian-cheng①,TIAN Lu①③,ZHANG Ji-bin④(①Institute of Surveying and Mapping,Information Engineering University,Zhengzhou 450052,China;②61768 Troops,Hainan Sanya 572011,China;③65015 Troops,Liaoning Dalian 116023,China;④95956 Troops,Xi'an 710054,China)
Design and implementation of auto positioning and orienting system based on twin GPS receiver LI Ke-xin,XIA Hong-sen(Department of Electronic Reconnaissance,Shenyang Artillery Academy,Shenyang 110162,China)
Application of total station three dimensional coordinate surveying in construction survey of bridge TIAN Lin-ya,WANG Jin-feng,WU Dong-hui(Department of Survey Engineering,Hohai University,Nanjing 210098,China)
Research and implementation of 3D cadastre modeling method ZHANG Ling-ling①,SHI Yun-fei②,XU Xiu-rong③(①School of Environment and Tourism,Linyi Normal College,Linyi 276000,China;②College of Resource and Environment,Wuhan University,Wuhan 430079,China;③Dongying Geotechnical Investigation and Surveying Institute,Dongying 257091,China)
The design and establishment of an open style photogrammetry experimental base GONG Tao①,RAN Jiang-jun①②③,FENG Wei①,KONG Jian①(①School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China;②Institute of Geodesy and Geophysics,Chinese Academy of Sciences,Wuhan 430077,China;③Graduate University of Chinese Academy of Sciences,Beijing 100049,China)
Research and application progress of national and international GPS meteorology CHEN Xiao-juan①,HU Cheng-sheng②,WANG Zhan-wei③(①Feixiang County Meteorological Bureau of Hebei Province,Handan 057550,China;②Handan Meteorological Bureau of Hebei Province,Handan 056001,China;③The Institute of Veterinary Medicine,Jiangsu Academy of Agriculture Science,Nanjing 210014,China)
Research on the tectonic stress field in North CHINA with gravity data CAO Xue-wei①,DANG Ya-min②,ZHANG Chuan-yin②,LIU Ji-min①(①Geomatics College,Shandong University of Science and Technology,Shandong Qingdao,266510,China;②Institute of Geodesy and Geodynamic,Chinese Academy of Surveying and Mapping,Beijing 100039,China)
Diurnal geomagnetic correction with multi-observatories in marine magnetic surveying BIAN Guang-lang①,LIU Yan-chun①,ZHAI Guo-jun②,BIAN Gang①,YU Bo①(①Dept.of Hydrography and Cartography Engineering,Dalian Naval Academy,Liaoning Dalian 116018,China;②Naval Institute of Hydrographic Surveying and Charting,Tianjin 300061,China)
Self-organizing feature map (SOFM) neural network method in reservoir quality synthetic evaluation and its application in Jixi basin QIE Rui-qing①②,XUE Lin-fu①,SUN Jing①,ZHANG Lin③(①Department of Land Resource Management,Jilin Agricultural University,Changchun Jilin 130118,China;②College of Earth Science,Jilin University,Changchun 130026,China;③Information Center of Land and Resources of Jilin Province,Changchun 130042,China)
Research on remote sensing-based Hoh Xil basin's preservation conditions of oil and gas LIU Hai-jun①,LIU Deng-zhong②,ZHAO Pei-song②,CUI Zhi-qiang②,DUAN Yuan-bin②(①Shaanxi Provincial Meteorological Office,Xi'an 710014,China;②Geosciences College,Chengdu University of Technology,Chengdu 610059,China)
Initial ore-searching method based on the structure and alteration information XIA Fu-rui①,HE Zheng-wei②,XU Hui-xi②,XUE Wan-rong②(①Institute of Digital Land & Ecological Science,Chengdu University of Technology,Chengdu 610059,China;②Institute of Engineering Surveying,Sichuan College of Architectural Technology,Deyang 618000 China)
Extracting desertification from landsat imagery using a feature space composed of vegetation index and albedo——a case study of Zhangye oasis and its adjacent areas PAN Jing-hu,QIN Xiao-juan(College of Geographic and Environmental Science,Northwest Normal University,Lanzhou 730070,China)
Study on the rapid observing and demarcating system for engineering damage MEI Lian-you,DU Xiao-mei,WANG Jian-guo,MA Zhi-ming(Logstical Engineering College,Chongqing 400016,China)
An adaptability study of gaussian equation applied to predicting ground settlements induced by shield tunneling in Tianjin PAN Hai-ze①②,JIANG Bing-yu③,HUANG Tao①(①Southwest Jiaotong University School of Environmental Science & Engineering,Chengdu 610031,China;②Shanghai University of Engineering Science,College of Urban Railway Transportation,Shanghai 201620,China;③Tianjin Urban Construction Tunnel Co.,Ltd,Tianjin 300122,China)
High-rise building settlement forecast based on unequal time interval data series SHAN Rui①,DU Zhi-xing①,LIU Yan-xiong②(①Geomatics School,Shandong University of Science and Technology,Qingdao 266510,China;②The First Institute of Oceanography,State Oceanic Administration,Qingdao 266061,China)
Study on relationships among evapotranspiration,land use and main land surface parameters based on remote sensing——A case study over lower Wuyu'er basin ZENG Li-hong①②,SONG Kai-shan①,ZHANG Bai①,DU Jia①②(① Northeast Institute of Geography and Agricultural Ecology,Chinese Academy of Sciences,Changchun 130012,China;② Graduate University of Chinese Academy of Sciences,Beijing 100049,China.)
A new SAR image filter method based on edge detection CAO Yun-gang①,YAN Li-juan②,ZHENG Ze-zhong①(①Department of Survey Engineering,School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China;②National Key Laboratory of Geohazard Prevention and Geoenvironment Protection,Chengdu University of Technology,Chengdu 610059,China)
Laser points cloud registration using Euclid distance measure ZHANG Mei①②,WEN Jing-hua②,ZHANG Zu-xun①,ZHANG Jian-qing①(①School of Remote Sensing and Information Engineering in Wuhan University,Wuhan 430079,China;②School of Mathematics and Statistics in Guizhou Financial Institute,Guiyang 550004,China)
A study on the security policy of the national geo-spatial data MIN Lian-quan①,LI Qiang①,ZHU Xian-zhen①,YU Qi-hong②(①Institute of Surveying and Mapping,Information Engineering University,Zhengzhou 450052,China;②Shenyang Artillery Academy,Shenyang 110162,China)
Meteorological data visualization technology based on 2.5 dimensional surfaces-Taking the wind field data demonstration as the example GONG Lin(Zhenjiang Watercraft College,Zhenjiang 212003,China)
Modeling orientation relations among three spatial objects and their applications in GIS DENG Min①,LIU Qi-liang①,XU Rui①,XU Feng②(① Department of Surveying and Geo-informatics,Central South University,Changsha 410083,China;②Resource & Environment Science College of Hunan Normal University,Changsha 410081,China)
MicroStation-based spatial data extraction ZHU Rui①②,XIAO Qiang ①,ZHAO Guo-cheng ①,ZHOU Bin ③(① Institute of Surveying and Mapping,Information Engineering University,Zhengzhou 450052,China;② Troops 61512,Beijing 100088,China;③ Information Engineering University,Zhengzhou 450002,China)
Quickly extracting DEM from LiDAR data based on spatial data index ZHANG Qi-yong①,CEN Min-yi①,HANG Fen①,FU Ren-jun②(Dept.of Surveying Engineering,Southwest Jiaotong University,Chengdu 610031,China;②CCCC Second Harbor Consultants Co.,Ltd.,Wuhan 430071,China)
Quality control for attribute data in GIS ZHANG Ming,ZHOU Shi-jian,ZENG Shao-bing(Faculty of geoscience and Survey Engineering,East China Institute of Technology,Jiangxi Fuzhou 344000,China)
Research on security protection of geography information publishing system ZHANG Han-lin①②,YU Qun③,LI Sui-yi④(①Institute of Surveying and Mapping,Information Engineering University,Zhengzhou 450052,China;②Institute of Science,Information Engineering University,Henan Zhengzhou 450001,China;③Institute of Electronic Technology,Information Engineering University,Zhengzhou 450004,China;④PLA Army Command College,Nanjing 210045,China)
Preparatory study of indoor celestial simulation software ZHANG Jian①②,LI Xiao-jie②,ZHANG Ting①(①61081 Troops,Beijing 100094,China;②Institute of Surveying and Mapping,Information and Engineering University,Zhengzhou 450052,China)
A study of several data structures of triangulated irregular networks and their storage mechanism LIU Yong-he①③④,ZHANG Wan-chang②(①Key Laboratory of Regional Climate-Environment Research for Temperate East Asia,Institute of Atmospheric Physics,Chinese Aacademy of Sciences,Beijing 100029,China;②Center for Hydro-Sciences Research,Nanjing University,Nanjing 210093,China;③Institute of Resources and Environment,Henan Polytechnic University,Henan Jiaozuo 454000,China;④Graduate University of Chinese Academy Sciences,Beijing 100049,China)
Research on geospatial information services composition model based-on Petri net JIN Bao-xuan(Yunnan Provincial Geomatics Centre,Kunming 650034,China)
A novel texture image classification algorithm via improved 2-D Gabor LIU Feng①②(①School of Geoscience and Environmental Engineering,Central South University,Changsha 410083,China;②College of Surveying Science and Information,Central South University of Forestry and Technology,Changsha 410004,China)
The organization and expression of spatial geographic information LI Xiao-xuan①②,WANG Guang-xia①,LI Xiao①,LIU Yi③,LI Zhi-yuan④(① Institute of Surveying and Mapping,Information Engineering University,Zhengzhou 450052,China;② 75719 Troops,Wuhan 430074,China;③61646 Troops,Beijing100094,China;④68011 Troops,Lanzhou 730020,China)
Rearch on GML spatial data storage based on db4o engine LAN Xiao-ji,SU Jian-Qiang,ZHANG Wei-Guo(Jiangxi University of Science and Technology,Jiangxi Ganzhou 341000,China)
Public transportation transfer based on integration of geometric and semantic rules applied on transportation networks CHEN Shao-pei①②,TAN Jian-jun①(①Centre for GIS,Guangzhou Institute of Geochemistry,Chinese Academy of Sciences,Guangzhou 510640,China;②Graduate School of Chinese Academy of Sciences,Beijing 100049,China)
Research on expression and transmission of 3D spatial data based on Web Services CHEN Liang,XIANG Nan-ping,JIANG Yao-peng,ZHONG Jing(School of Info-Physics and Geomatics Engineering,Central South University,Changsha 410083,China)
Design and realization of water resources information management and analysis system based on oracle 10g and MapX LIU Jia-fu①②,SUN Hong-quan②,XIU Li-na③,LI Jing②,WANG Ping④(①College of Tourism and Geographical Sciences,Jilin Normal University,Siping 136000,China;②Academy of Disaster Reduction and Emergency Management,Beijing Normal University,Beijing 100875,China;③ China University of Geosciences;Beijing 100083,China;④School of Urban and Environmental Sciences,Northeast Normal University,Changchun 130024,China)
3D modeling of urban pipelines based on OpenGL LIU Wei-min①②,YAO Zhi-qiang①,WANG Feng①③,LU Zhan-wei①(①Institute of Surveying and Mapping,Information Engineering University,Zhengzhou 450052,China;②62217 Troops,Geermu 816000,China;③72946 Troops,Zibo 255000,China)
Gross error elimination of terrain survey data obtained by terrestrial 3D laser scanning system LI Liang①②,WU Kan①②,LIU Hu①②,HAO Gang①②(①School of Environment Science and Spatial Informatics,China University of Mining & Technology,Xuzhou 221008,China;②Jiangsu Key Laboratory of Resources and Environmental Information Engineering,Xuzhou 221008,China)
GIS applications using COM callback mechanism of MapInfo MA Kui①②,LI Hong-wei①,MAO Biao①(①Surveying and Mapping Institute,Information Engineering University,Zhengzhou 450052;②Electronic Engineering Institute,Hefei 230037,China)
Some key problems in the design of CLUE-S model-based integrated system WANG Qi-song,ZENG Yong-nian,YANG Can(School of Info-Physics and Geomatics Engineering,Central South University,Changsha 410083,China)
The design and implementation of Chongqing underground river database based on GIS WANG Yan-hua①,JIANG Yong-jun①②,PU Jun-bing①,LI Chao①,ZHANG Dian①(①School of Geographical Sciences,Southwest University,Chongqing 400715,China;②Research Instiute o Karst Environment and Rocky Desert Control,Southwest University,Chongqing 400715,China)
The study on building boundary extraction based on LIDAR data YANG Yang①,ZHANG Yong-sheng①,MA Yi-wei①②,XU Ya③(①Institute of Surveying and Mapping,Information Engineering University,Zhengzhou 450052,China;②61512 Troops,Beijing 100088,China;③73063 Troops,Nanjing 210049,China)
The research and realization of service-oriented urban fundamental geographical information metadata catalog system ZHANG Tao(School of Geomatics and Prospecting Engineering on Communications,Jilin Architecture Engineering College,Changchun 130021,China)
Investigation of parallel method of RS image SAM algorithmic based on GPU YANG Jing-yu,ZHANG Yong-sheng,DONG Guang-jun(Institute of Surveying and Mapping,Information Engineering University,Zhengzhou 450052,China)
Detecting and removing cloud and shade on TM imagery based on LSMA ZHENG Wen-wu①②,DENG Yun-yuan②(①Central South University,School of Info-Physics and Geomatics Engineering,Changsha 410083,China;②Department of Resource Environment and Tourism Management,Hengyang Normal University,Hunan Hengyang 421008,China)
Retrieval of conifer LAI based on the multiple-angle model HAN Gui-hua①,WANG Qiang②,LIU Dan-dan②(①Department of Surveying Engineering,Heilongjiang Institute of Techonogy,Haerbin 150040,China;②Institute of Forestry,Northeast Forestry Nuiversity,Haerbin 150040,China)
The subdivision cataloguing model of remote sensing data based on global discrete grid XIAO Qia,CHENG Cheng-qi,GUAN Li,GU Lin(Institute of Remote Sensing and GIS,Peking University,Beijing 100871,China)
New methods for water body extraction from TM data based on LBV transformation LI Min-guang,FAN Hong-dong,DENG Ka-zhong(School of Environmental Science and Spatial Informatics,China University of Mining and Technology,Xuzhou 221008,China)
A registration method of RS image based on improved SIFT algorithm LEI Xiao-qun①,LI Fang-fang②,XIAO Ben-lin③(①The first Surveying and Mapping Institute of Hunan Province,Hengyang 421001,China;②School of Remote Sensing and Information Engineering,Wuhan University,Wuhan 430079,China;③Civil Engineering & Architecture School,Hubei University of Technology,Wuhan 430068,China)
Target detection in hyperspectral imagery using support vector regression CHEN Wei①,YU Xu-chu①,WANG He②(①Institute of Surveying and Mapping,Information Engineering University,Zhengzhou 450052,China;②Digital LandView Technology Company Limited,Beijing 100020,China)
The designe and impletmentation of large-scale imagery database ZHANG Chang①,LIU Qiang①,DAI Chang-li②,YANG Fu-bin②(①School of Automation Engineering,UESTC,Chengdu 610054,China;②Chengdu Cartographic Publishing House,Chengdu 610054,China)
GIS-based evaluation,analysis and planning of tourism resources in Yanqing YANG Wen①①③,LIU Hong-li①,ZHAO Wen-ji①②③(①College of Resource Environment and Tourism,Capital Normal University,Beijing 100037,China;②Laboratory of 3D Information Acquisition and Application,MOST,Beijing 100037,China;③Beijing Municipal Key Laboratory of Resource Environment and GIS,Beijing 100048,China)
Design and realization of Hengyang real estate market management information system LIU Li-lin①,HE Yue-guang①,HUANG Meng-nan②(①Changsha University of Science and Technology,School of Transport Engineering,Changsha 410076,China;②Real Estate Mapping Center of Hengyang,Hengyang 421000,China)
2010 Issues:  [S1] [06] [05] [04] [03] [02] [01]
More Issues:   [1981]   [1982]   [1984]   [1985]   [1986]   [1987]   [1988]   [1989]   [1990]   [1991]   [1992]   [1993]   [1994]   [1995]   [1996]   [1997]   [1998]   [1999]   [2000]   [2001]   [2002]   [2003]   [2004]   [2005]   [2006]   [2007]   [2008]   [2009]   [2011]   [2012]   [2013]   [2014]   [2015]   [2016]   [2017]
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved