英语词汇“compression ratio”是什么意思，“compression ratio”的读音、用法及例句翻译-乐坝网

词汇	compression ratio
释义	compression ration.（名词） 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
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