This is normally done by charging the brakepipe fully from one end of the train and checking that it has charged at the other end.
通常的做法是从列车制动管的一端充气，观察另一端的变化。
2
This paper presents a process of a "Portable Testing Instrument for Train BrakePipe Gas Pressure", including hardware design and software development.
本论文完成的工作包括便携式列车管气体压力测试仪的硬件设计与软件开发。
3
By use of modern computational fluid dynamics method (CFD), 2-dimension air-charging characteristics model of the heavy haul train air brakepipe system is built.