The internal teeth of the ring gear mesh with the planet gear teeth. Thus, the ring gear rotates with the other parts of the planetary gear system.

内齿圈的内齿与行星轮的齿啮合。因此，内齿圈随着行星轮系统的其他配件旋转。

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Since the internal teeth sleeve for the gear coupling is floating with the sun gear in the planetary-stage, coupling gear is made of alloyed steel.

由于齿轮联轴器的内齿套也随行星级中的太阳轮一起浮动，所以联轴器齿轮也采用合金钢材料来制造。

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A method of calculating and selecting modification coefficient of the internal gear with less teeth difference is presented.

介绍了一种适用于少齿差内啮合行星齿轮变位系数的计算及选取方法。

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Now it has had to cut back on the internal focus groups and bare its teeth.

ECONOMIST: The quiet American

He works for the Internal Revenue Service, never takes vacations, and always cleans his teeth with the same number of brushstrokes.

NEWYORKER: Stranger Than Fiction