Therefore, it is of great significance to research on the piston skirt profile design and to find an advanced reasonable piston skirt surface design method.
因此，研究活塞裙部型面的设计，寻求一种先进合理的活塞裙面设计方法，具有重要的意义。
Therefore, it is of great significance to research on the piston skirt profile design and to find an advanced reasonable piston skirt surface design method.
因此，研究活塞裙部型面的设计，寻求一种先进合理的活塞裙面设计方法，具有重要的意义。
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