The size accuracy of press tools main ly depends on the cutting edge sizes a nd tolerances of punches and matrixes.

冲裁件的尺寸精度要取决于凸、凹模的刃口尺寸及公差。

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The press tools of the internal ring of 7909 bearing which has seriously early stage damage problems are chosen as analysis objects.

分析对象选定早期损坏现象比较严重的7909轴承内环封闭式冲模。

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Simple body panels made from light alloy and a chassis fabricated from off-cuts avoid the use of rationed steel and the need for complex and expensive press tools.

由轻合金制成的简单车身面板与非正常尺寸的底盘设计避免了使用配给钢材和复杂而昂贵的压制工具。

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Fingers can be made to wobble, point, slide or press, making them much more effective as tools to help people use their computer.

BBC: Handy future for gesture sensor

But whatever their limitations, the tools allow us to examine how words are being used by both the press and the general population, and to measure changes in their popularity and shifts in their meaning.

NPR: 'Talking Right': Why the Left Is Losing, Linguistically

He had the entire traditional political press corps and mainstream media focused on him like a laser beam by utilizing one of the most old school tools available to a senator -- the filibuster.

CNN: New leader of the GOP: Rand Paul