This cannot be achieved by an automatic transmission vehicle because there is no gear to tie a given road speed.

这就不能实现自动变速器的车辆，因为没有齿轮系一个给定的道路的速度。

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The paper researches one of the key techniques of the cycloid steel ball reducer, that is the synthesis of conjugate waves shapes for no gear clearance engagement pair.

本文研究摆线钢球减速器关键技术之一，无侧隙啮合副共轭齿形综合问题。

youdao

But he said the thousands of cleanup workers face possible health concerns after being told to help out, receiving no protective gear and being coated in crude.

但是他说，几千名被告知去帮忙清理油污的工人，可能面临潜在的健康问题，因为他们没有得到任何保护设备，并且全身沾满了原油。

youdao

British politicians like to boast "they have no reverse gear", but in Brazil, going backwards is a destination in its own right.

BBC: Brazil: No reverso

It's been an awfully long time now to be out there with no life-saving gear, in big seas and in such temperatures.

BBC: Two missing in storms

Next time I saw my brother on the street he was with Pura and the kid, looking awful in gear that no longer fit him.

NEWYORKER: The Pura Principle