... 机械式指示 mechanical indication 机械式指示 mechanical indication 机械式仪器 mechanical instrument ...
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差压表是用来检测两个检测点的压力差值，直接在仪表表盘上指示出差压值的机械式压力表。
Differential pressure gauges is used to test the pressure difference between two points, it is a mechanical pressure gauge that can directly indicate the pressure difference on the instrument meter.
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