发动机具有较高的效率比涡轮机的同时，额定功率。
An engine with a higher efficiency than turbines of the same power rating.
从发动机外特性试验结果看：随着燃料中乙醇含量的增加，发动机最大扭矩和额定功率逐渐降低；
The results of engine full-load characteristic show that the power output of engine decreases as the ethanol volume concentration of diesohol fuel increases.
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