注意气分内回油孔尺寸，还有气分的设计容积。
Pay attention to their fair share of oil gas hole size, and the design of the gas points capacity.
本例活塞特殊的回油孔结构特征对有限元分析结果产生了巨大的影响，因此不能简单地简化掉这一细微结构进行有限元分析。
It shows that features oil return holes is also important and have great impact on fea results, so it is sensed that any simple simplify should not be done in modeling in fea.
本例活塞特殊的回油孔结构特征对有限元分析结果产生了巨大的影响，因此不能简单地简化掉这一细微结构进行有限元分析。
It shows that features oil return holes is also important and have great impact on fea results, so it is sensed that any simple simplify should not be done in modeling in fea.
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