And the trace programme of a line, a arc and a parabola is established.

并编制了直线、圆弧和抛物线的轨迹程序。

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A arc parameter-measuring system was developed to analyze the process of short-circuiting arc welding and the effect of arc energy on the welding stability.

为了分析短路过渡电弧的焊接过程和探讨电弧能量对焊接稳定性的影响，设计了短路过渡电弧电参数检测系统。

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The helicopter made a slow arc, passing over the mound but not stopping.

这架直升飞机做了一个缓慢的弧线运行，飞过那座小丘，但没停下来。

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One of his early programs was a history show where he questioned actors playing people like Aristotle and Joan of Arc.

VOA: special.2009.08.16

This is titanium sponge that comes out of the bottom of this reactor, and it subsequently re-melted in a vacuum arc furnace.

海绵状的钛,从反应器的底部出来，随后在真空炉中重新熔炼。

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Beyond the picturesque locale and its beautiful subjects, the shots were a revealing arc in a much-publicized love story.

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She allows her hair to be teased into a lofty blond arc, a sort of cotton-candy diadem, and her speech, with training, gets heavier and slower, the emphasis landing on selected, morally significant syllables like a hammer hitting an anvil.

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But that is not the case for many cities that have risen, often anarchically, on a coastal arc from China to the Arabian Sea, luring millions in search of a better life.

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