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《Physical Experiment of College》 2005-04
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Xuchong Liu zheyu Huan weiliang(Anshan University of Science and Technology,Anshan,114044)  
On the basis of original experiment,we change surface plate of former Laboratory apparatus into the metrical cup.Through controlling the speed of descent liquid,so the reading of distal voltage gauge can be easily observed when the ring drops out of the surface of the liquid.Besides it is hant to make the ring parallel with the surface of liq- uid,so we mark on the metrical cup every three millimeters with a single line.As a result,the liquid surface tension coefficient measured like this is closer to actual value.
【CateGory Index】: O552.421-33
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