... 层状多孔介质 layered porous medium 差压流量计 differential pressure type flowmeter 差压流速计 differential pressure flowmeter ...
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differential pressure mass type flowmeter 差压式质量流量计
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A new-type 1/4 circular stopper differential pressure flowmeter is designed.
因此,本文设计了一种1/4圆形挡块式流量计。
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