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.
航空器材。圆盘式机载仪表。机械传动式转速表。
Aircraft equipment. On board instrument with round dials, mechanical transmission tachometer.
飞机设备。圆刻度盘机载仪表。机械传动式转速表。
Aircraft equipment. on board instrument with round dials, mechanical transmission tachometer.
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