最后讨论了器壁再循环对密度控制的影响和送气的加料效率。
The influence of wall recycling and fuelling efficiency of gas puffing are discussed.
对气体进行压缩的目的是输送气体或者为化学反应创造必要的条件。
The purpose of the gas compression is conveying gases or for chemical reaction to create the necessary conditions.
hour的首字母h不发送气音。
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