维修及安装铁路车辆部件如压缩机，空气阀，轴承，联轴器，气缸和管道。
Repair and install railway car parts such as compressors, air valves, bearings, couplings, air cylinders and piping.
把管道系统与水管，供应罐，泵，压缩机和控制设备相连接。
Connect piping system to water mains, supply tanks, pumps, compressors and control equipment.
在空气压缩机控制系统中，采用空压机后端出气管道上安装的压力传感器来控制空气压缩机的压力。
In the air compressor control systems, the air compressor vent pipe on the installation of pressure sensor to control the air compressor of pressure.
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