The important conclusion includes: 1. The best energy using efficiency of high-pressure gas was on the basis of the low inlet pressure and the inlet valve closed when piston was on 1/4 form TDC to BDC.是什么意思_The important conclusion includes: 1. The best energy using efficiency of high-pressure gas was on the basis of the low inlet pressure and the inlet valve closed when piston was on 1/4 form TDC to BDC.在线翻译_英语_读音_用法_例句