The double and single pressure measuring instruments in the standard systems were developed specially for the measurement of pressure in vehicles with a compressedairbrake.
用于标准系统双值和单值压力测量仪器，是为了满足带有压缩空气式制动器车辆压力测量，而专门研发的。
2
The double and single pressure measuring instruments in the standard systems were developed specially for the measurement of pressure in vehicles with a compressedairbrake .
用于标准系统双值和单值压力测量仪器，是为了满足带有压缩空气式制动器车辆压力测量，而专门研发的。
3
The vehicle compressed fluxion air is used to conduct the control signal source and brake, so in special environment of plateau the vehicle system brake performance may variety.