气门头 meaning in English
valve head margin
valve head
Examples
- Convex head valve
凸形气门头 - Also the valve heads will be liable to be burnt by the passing hot gases , and there is the likelihood of the piston crown touching an open valve , which can seriously damage the engine
此外气门头易于被通过的热气体燃烧，这有可能使活塞频繁冲击打开的气门，使发动机严重损坏。