Therefore, you need to be careful about over specifying the compression ratio.

因此，应该注意不要指定过高的压缩率。

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Unfortunately, without some special means for altering the compression ratio, such engines would quickly disintegrate if fuelled with petrol.

不幸的是，由于缺乏某些调整压缩比的专门方法，这样的引擎如果燃烧汽油的话会立刻四分五裂。

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The main focus of this group is to achieve the highest compression ratio.

这类压缩器主要侧重于实现最高的压缩比。

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This means that the compression ratio of an ICE using ethanol can be taken up to 24:1 compression ratio before preignition begins to happen.

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The higher the compression ratio, the higher the power output and the higher the thermal efficiency.

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The higher the octane number, the greater the resistance to preignition making a higher compression ratio possible.

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