以下为句子列表：
英文: 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.
中文: 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。
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英文: 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.
中文: 静压是差压表两个检测点所在管道内的设计压力。它是差压压力表选型时必需的数据。
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