电压表 [电] voltmeter ; PV ; [电] Voltage Meter
气压表 [气象] barometer ; air gauge ; air pressure gauge ; barometer
数字电压表 digital voltmeter ; DVM ; Digital Voltage Meter
油压表 oil pressure gauge ; Oil pressure indicator
电子管电压表 vacuum tube voltmeter ; valve voltmeter
空盒气压表 [气象] aneroid barometer ; dial barometer ; aneroidometer
水银气压表 mercurial barometer
标准气压表 [气象] normal barometer ; standard barometer
本实用新型涉及一种防冻、防盗回压表阀。
The utility model relates to a back-pressure gauge valve which is freeze proof and theft proof.
方法：用真空负压表、延迟控制线路，接通电话机免提键、存储拨号键。
Methods The vacuum negative pressure meter and the delayed control line were used.
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。
Static pressure is the designed pressure difference within the pipeline between two testing points. It is a necessary date when selecting different types of pressure gauges.
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