... velocity made good 对地船速航迹速度 velocity measure error 测速误差 velocity measurement of satellite system 卫星测速系统 ...
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The error caused by the ring method of equivalent area to measure the mean velocity of the circular pipe is studied by the different now pattern.
根据不同流型讨论了等面积圆环法确定断面平均流速时所产生的误差。
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