The crankcase is the lower part of the engine cylinder block .
曲轴箱是发动机气缸体较低的部分。
This procedure is done with the engine cylinder head removed from the block.
程序用来从引擎区拆下引擎汽缸盖。
Cylinder block is an important part in motorcycle engine. There exists defects by conventional treatment.
气缸体是摩托车发动机的一个重要部件，采用常规方法处理存在缺陷。
Cylinder block is an important part in motorcycle engine. There exists defects by conventional treatment.
气缸体是摩托车发动机的一个重要部件，采用常规方法处理存在缺陷。
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