differential flow-in and out
... differential float collar压差式浮箍 differential flow-in and out进、出口流量差 differential flowmeter压差流量计 ...
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differential flow-in and out
不同的流入和流出
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Then, based on that, the turbulent motional differential equation for a pipe is made out From that, the turbulent flow and displacement laws for non-Newtonian fluids in a pipe have also been studied.
在此基础上，导出了适用于圆管的运动微分方程序。据此研究了非牛顿流体圆管紊流流场及两种非牛顿流体在圆管中的顶替规律。
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