| 单词 | cylinder head |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔HOT〕The hottest part of the engine is the cylinder head. 发动机最热的部分是气缸盖。朗文写作活用〔compression ratio〕In an internal combustion engine, the ratio of the volume between the piston and cylinder head before and after a compression stroke.压缩比：内燃机中，在压缩行程前后活塞到汽缸盖之间的容量比美国传统〔valve-in-head engine〕An internal-combustion engine, as in some automobiles, that has the inlet and exhaust valves in the cylinder head instead of in the engine block.顶置气门发动机：一种内燃机，如用于汽车上的内燃机，在汽缸顶部而非发动机内部装有进给阀和排气阀美国传统 |
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