Connect the vacuum pump to the compound pressure gauge; open the compound pressure gauge and vacuum pump to vacuum the indoor unit and connecting pipe.
将真空泵连于复合压力表，打开复合压力表和真空泵对室内机和连接管抽真空。
The measurement of pressure relative to the pressure in a vacuum, equal to the sum of the pressure shown on a pressure gauge and atmospheric pressure.
以真空中的压力为基准的压力的量度，等于压力计显示的压力与大气压力的总和。
The pressure measurement and the design basics of the co-axial pulsed magnetron discharge vacuum gauge for vacuum interrupters were discussed.
介绍了同轴场式脉冲磁控真空计的测量原理以及设计中的有关问题。
Pump could not suction water. The fingers of pressure gauge and vacuum gauge swing acutely.
水泵不吸水，压力表及真空表的指针在剧烈摆动。
The results have shown that this new-type vacuum gauge possesses higher sensitivity in the 760-10-5 torr range of pressure change. It is hopeful to use it as a vacuum gauge in measuring a wide …
结果表明，此种新型规管在760～10~（-5）托压强变化范围内有较高的灵敏度，可望作为测量从粗真空到高真空宽量程的真空规管。
Combined Pressure and Vacuum Gauge and Vacuum Gauge.
压力真空表和真空表。
Meteorological and laboratory areas, such as gauge or weight measurement must also test negative pressure, vacuum and so on.
气象及实验室等领域进行表压或绝压得测量，也可测负压，真空度等。
Meteorological and laboratory areas, such as gauge or weight measurement must also test negative pressure, vacuum and so on.
气象及实验室等领域进行表压或绝压得测量，也可测负压，真空度等。
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