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。
Circulating water pump inlet pipe and outlet pipe should also install pressure gauge.
循环水泵的进水管和出水管上也应装压力表。
Metallurgical oxygen system pipe system, should use strict degreasing treatment, needle valve flange J29 Angle Pressure Gauge valve connection.
冶金系统中的氧气管路系统中，宜选用经过严格脱脂处理，法兰连接的针型阀。
This paper describes how to increase the productivity effect of cutter-suction dredgers in the fields of cutting force, dredging pump, gauge pile and exhaust pipe.
本文从绞刀、泥泵、定位桩装置及排泥管等四个方面，论述了提高绞吸式挖泥船生产效率的途径。
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。
This paper recommends a method of measuring flow by the flute pipe-pressure difference gauge, which is suited to measure flow at pumping station.
本文推荐一种适合泵站单泵测流的笛形管——差压计测流方法。
The oil tank body forms into constant volume, and is provided with a digital graduated level gauge, and an oil outlet pipe is connected to a main fuel tank of an automobile.
本油箱的箱体采用固定容积，在箱体上带有数字刻度的液面指示计，其出油管连接到汽车主油箱上。
The front end of the nip of the gauge head pliers is an oblique blade which can hang the pipe wall port of the cable connection clamp for measuring the holding force.
表头钳钳口的前端是一个斜刃，可挂住电缆接线卡的管壁端口，以测量其握裹力。
The front end of the nip of the gauge head pliers is an oblique blade which can hang the pipe wall port of the cable connection clamp for measuring the holding force.
表头钳钳口的前端是一个斜刃，可挂住电缆接线卡的管壁端口，以测量其握裹力。
应用推荐