This paper analyses the contact stress between the rollers and the outer track of roller bearing in detail, and then concludes the contact stress of all kinds of the bearing rollers.
本文就三牙轮钻头滚动轴承滚子与外圈之间的接触应力进行了详细的分析，得出各种类型轴承滚子的接触应力分析情况。
This photomicrograph was obtained by scanning a beam of electrons across the sample while a detector kept track of electrons bouncing off its surface, betraying the specimen's outer shape.
这幅显微照片是通过扫描穿过样品的电子束而获得的，同时检测器对从样品表面反弹的电子进行追踪，这些电子显示了标本的外形。
An outer layer on each of the eight surrounding pyramids selectively blocks out portions of the structures throughout the month, keeping track of the lunar cycle like hands on a clock.
周围8个金字塔中每一个上的外层有选择地摆出整个月的某一结构部分，像手上的钟表一样记录着月亮的周期。
An outer layer on each of the eight surrounding pyramids selectively blocks out portions of the structures throughout the month, keeping track of the lunar cycle like hands on a clock.
周围8个金字塔中每一个上的外层有选择地摆出整个月的某一结构部分，像手上的钟表一样记录着月亮的周期。
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