engine weight per horsepower
... 动力机式发电机 engine type generator 每马力动力机重 engine weight per horsepower 空气动力机 engine，air ...
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The size, weight, and cost of the engine per horsepower are therefore less, and two-stroke-cycle engines are used in motorcycles and smaller machines (e. g. , lawnmowers and power rakes).
因此，每马力所要求的机器尺寸、重量和价格成本也就降低了，所以二冲程循环发动机多用于摩托车和小型机器（如割草机和动力耙）。
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