电信号压力表的传感装置是采用远红外对管的开关原理，实现传感控制功能的。
The sensor signals pressure gauge is used far infrared devices on the principle of switching, and control functions of the sensor.
由气柱玻管、压力表、定容机构、固定架和体积标尺组成。本仪器不使用水银，消除了污染。
Consists of gas tube, manometer, volume controller, clamp and scale. No danger of pollution without mercury.
指出从改善弹簧管的材质入手来提高含硫天然气管道用压力表的寿命是不可取的。
It is not advisable to lengthen the pressure gauge service life of sulfurous gas pipeline by improving the material behavior of spring tube.
快速树干注射器主要由贮液瓶、压力表、弹簧秤、输液管、注药口、气门嘴、注射针头、开关等几部分组成。
The quick trunk injector comprises a reservoir pressure-meter, a spring balance, a transfusion pipe, a liquid valve, an air pinhead and a switch.
单管或多管试漏时，因打压介质充填量小，若管束有漏点，易于从压力表上快速显现出压降。
Single - or multiple leakage test, by suppressing media filling quantity is small, if the tube bundle leakage, easy to from the pressure gauge on the fast show pressure drop.
主要结构有：JDQM全面罩、供气阀、减压阀、背板、压力表、报警哨、中压管、碳纤维复合气瓶等。
Main structured items are: JDQM full face mask, air supply valve, pressure regulator valve, backboard, pressure gauge, alarming whistle, medium pressure tube, carbon fiber composite cylinder, etc.
蒸汽锅炉生火之前，应检查各阀门水管、汽管、压力表、安全阀、水位表、排污阀等是否处在完好状态。
1 before the fire, steam boiler, should check the valve pipe, steam pipe, pressure gauge, safety valve, water level gauge, drain valve is in good condition.
蒸汽锅炉生火之前，应检查各阀门水管、汽管、压力表、安全阀、水位表、排污阀等是否处在完好状态。
1 before the fire, steam boiler, should check the valve pipe, steam pipe, pressure gauge, safety valve, water level gauge, drain valve is in good condition.
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