A new index is proposed to evaluate performance of the air-powered engine-the ratio of the mean effective pressure and the average pressure in the engine cylinder.

提出一个评价气动发动机性能的新指标——气动发动机平均有效压力和缸内平均压力的比值。

youdao

In a review of the Swedish supercar the Koenigsegg Agera R, I displayed ignorance regarding a common measure of an engine's volumetric efficiency, the Brake Mean Effective Pressure.

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