电动汽车有一个主要的运转部件：马达。
滚圈是回转窑最重要的支承部件，运转中弯曲应力造成的疲劳开裂是其主要失效形式。
Fatigue cracking of a roller is the main failure form due to the alternate bending stress in operation.
一种新型动力机器，用的弹力为动力，使机器连续运转，主要部件是元周轨道和平衡旋转装置。
A novel power machine USES elasticity as power for driving machine to run continuously, whose main parts are circumferential track and equilibrium rotating device.
如果你没做过，不要做这些事情，主要是因为电脑里面有一些很敏感，且高速运转的部件，以及相对不运转的部件。
and if you've never been, don't do this, it's largely because there are these very sensitive moving parts and there are relatively few moving parts left in today's computers.
如果你没做过，不要做这些事情，主要是因为电脑里面有一些很敏感，且高速运转的部件，以及相对不运转的部件。
and if you've never been, don't do this, it's largely because there are these very sensitive moving parts and there are relatively few moving parts left in today's computers.
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