Secondly, the fault mechanisms of valves and piston subassemblies are analyzed from thermodynamics and vibration methods.
对气阀和活塞组件分别从热力学和振动分析角度给出了合理的故障机理分析；
Secondly, the fault mechanisms of valves and piston subassemblies are analyzed from thermodynamics and vibration methods.
对气阀和活塞组件分别从热力学和振动分析角度给出了合理的故障机理分析；
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