When a hand wheel is toggled, the nut connecting plate drives the hand piece of the suspended type submerged arc welding machine and a wire reel bracket to move axially.

拨动手轮时，螺母连接板带动悬挂式埋弧焊接机头与焊丝盘支架轴向移动。

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The vertebroplasty system investigated in this study comprises a high viscosity PMMA cement and USES a hydrostatic pressure hand piece for enhanced cement allocation and flow control.

本研究中的椎体成形术系统包括高粘度PM MA水泥，并使用一种流体静压手件以加强水泥调配和流量控制。

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He gashed his hand on a sharp piece of rock.

他的手在一块尖石头上划了一个大口子。

《牛津词典》

It had been fixed with a piece of blue paper and the upper right hand corner was missing.

VOA: special.2009.01.17

And there's also an experimental participation requirement, and next week I'll hand out a piece of paper describing the requirement.

我还要求你们以被试的身份去参加实验,下个星期我会给你们,一份关于要求的介绍

耶鲁公开课 - 心理学导论课程节选

Well I ought to be able to do that by simply generalizing the loop. And that's what the next piece of code on your a hand out shows you.

好的通过生成这个循环,我应该能够达到目的,这也是你们的讲义中下一段代码。

麻省理工公开课 - 计算机科学及编程导论课程节选

The turbos trill like a dentist's hand piece.

WSJ: Nissan's Mad Scientists Grow a Bluntly Boffo GT-R | Rumble Seat by Dan Neil

On the other hand, every piece of advice issuing from a Wall Street firm comes couched in caveats.

ECONOMIST: Wall Street

The technology feels like a step backward, from big mechanical machines using nineteenth-century technology to a new system that involves people copying information by hand from one piece of paper to another.

FORBES: New York's New Voting System Is a Disaster