engine_volume_efficiency_有道手机词典

1.Problems like low work efficiency, easy fault and large volume of outline of figure of existing crank-connecting rod mechanism fuel engine can be solved through the invention.
本发明解决了现有的曲柄连杆机构式燃油发动机存在工作效率低、易出现故障、外形体积较大的问题。
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