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On Maintenance of Differential Pressure Flow Measuring System

Dong Gaofeng(Instrument Plant of Juhua Engineering Co.Ltd,Quzhou,Zhejiang 324004)  
Characteristics of differential pr essure flow measuring system are int roduced,maintenance and use state o f the system,effect of operation state and design state o n accuracy and reliability are analy zed.The author thinks preventive ma intenance is absolutely necessary,and puts out perfection s uggestions.
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