This paper introduces a vibration diagnostic system for reciprocatingmachine.
研究了一套振动诊断系统软件，可用于往复机械的故障诊断。
2
However, diesel engine is a typical reciprocatingmachine, its monitoring and diagnosis are very difficult because of its complex structure.
柴油机是一种典型的往复式动力机械，结构复杂决定了对其进行状态监测与故障诊断的困难性。
3
The internal-combustion engine is one of the main powers in production, and it is also a kind of complex reciprocatingmachine, so to monitor its state and diagnose its faults are very difficulty.