safety exhaust是什么意思 safety exhaust怎么读
safety exhaust的用法和样例
- Lock the exhaust valve in its open position.
把排气阀固定在它开启的位置。 - When the piston nears the top of this stroke, the inlet valve is opened and the exhaust valve closed.
随着曲轴转动，复又向上带动活塞，同时废气经由气缸头盖上的排气阀排出。
展开更多
