The perfect design of radiator, not only improve efficiency of engine, but also increase its useful life.
散热器的合理设计，可以提高发动机的效率，增加其使用寿命。
With the increasing soot level contaminating lubricating oil, the oil viscosity increase and wear of engine components become more severe. And it shortens the life of engine.
柴油机油引起的粘度增长不仅缩短了柴油机的使用寿命，而且增加了零部件的磨损。
With the increasing soot level contaminating lubricating oil, the oil viscosity increase and wear of engine components become more severe. And it shortens the life of engine.
柴油机油引起的粘度增长不仅缩短了柴油机的使用寿命，而且增加了零部件的磨损。
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