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。

This paper presents a process of a "Portable Testing Instrument for Train Brake Pipe Gas Pressure", including hardware design and software development.

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建立了考虑列车管泄漏的连续性方程，给出一种求解压力速度耦合方程的显式有限差分算法。

We have established the continuity equations under train pipe leakage condition and presented an explicit finite difference method to solve the pressure-velocity coupling equations.

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