From the angle of diesel engines depreciation rule, maintenance cost rule and the consumption rule, This paper analyzes the questions of 195 diesel engines economy-life and update revolution.
从分析柴油机的折旧规律、维修费用规律以及燃油耗费用规律入手，对195柴油机的经济寿命和更新周期问题进行了分析。
From the angle of diesel engines depreciation rule, maintenance cost rule and the consumption rule, This paper analyzes the questions of 195 diesel engines economy-life and update revolution.
从分析柴油机的折旧规律、维修费用规律以及燃油耗费用规律入手，对195柴油机的经济寿命和更新周期问题进行了分析。
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