In the paper, a new type the elastic sliding key gearshift mechanism of machine tools was presented, and the gearshift mechanism structure principle is analyzed.

介绍了机床弹性滑键齿轮变速换挡机构的结构原理，并对弹性滑键齿轮变速换挡机构进行理论分析。

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Copper flat wire strengthening equipment was introduced in this paper, including its working principles, the mechanism structure and the control system composed of computer and PLC.

设计了一种强化铜扁线的设备，包括其工作原理、机械结构和以计算机与P LC为核心的控制系统。

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And in terms of thinking about it for organic chemistry or if you're interested in thinking about the mechanism maybe by which it is toxic, a first step would be to draw its Lewis structure.

而为了在有机化学中思考它,或者如果你对它,有毒的机理感兴趣的话，第一步要做的应该就是画出它的路易斯结构。

麻省理工公开课 - 化学原理课程节选

We have begun preliminary conversations about how do we structure a mechanism so that the legitimate claims that are going to be presented not just tomorrow, not just next week, but over the coming months, are dealt with justly, fairly, promptly.

WHITEHOUSE: A First-Hand Look at the Federal Response to the BP Oil Spill

There needs to be an efficient institutional mechanism with an equitable, accountable governance structure for delivering financial and technological support to developing countries as they pursue mitigation efforts.

UN: Secretary-General