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Material removal by machining involves interaction of five elements: the cutting tool, the toolholding and guiding device, the workholder, the workpiece, and the machine.

材料的切削5素有关:刀,刀的夹向装置,工件的夹,工件加工机器。

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CNN 精选 2015年10月合集

It includes a stone flake that might have been a cutting tool and the remains of woolly mammoth.

其中有块可能是刀具小石头片, 以猛犸象遗骸。

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猛犸象进城记-野性新世界

They were master of flintknappers meticulously chipping and sharpening pieces of flint to make spears and cutting tools.

他们擅用打火石精细雕刻,用尖利碎石片矛以工具。

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VOA慢速英语_单词故事

And those tools were called a shepherd's crook, a long, rounded stick, and a billhook, a cutting tool.

这些工具被称为牧羊人拐杖,根又又圆棍子,还有个钩镰,种切割工具。

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犯罪心理 第1季

Marks on the bones are consistent with the same cutting tool.

骨头上利器伤痕。

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TED演讲(音频版) 2020年12月合集

So astronomers would take razor-sharp cutting tools and slice these tiny pieces of glass, all in the dark.

因此,天文学家会在黑暗中使用锋利切割工具切割这些微小玻璃片。

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揭秘泰坦尼克号

A team of scientists, equipped with cutting edge tools, now tackles the long-standing mysteries of the disaster that could rewrite the Titanic's story.

组配备了尖端工具科学家现在正在解决这场灾难谜团,这可能会改写泰坦尼克号故事。

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CNN 10 学生英语 2017年5月合集

The British media also reporting drones may have been used to smuggle in wire cutting tools used in a prison escape.

英国媒体还报道说,无人机可能被用来走私越狱时使用钢丝切割工具。

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6 Minute English 六分钟英语

Joanne was horrified by Halloween costumes of the Grim Reaper – an imaginary skeleton who wears a long black cloak, carries a sharp cutting tool and represents Death.

乔安妮被死神样式万圣节服装吓坏了。“the Grim Reaper”是人们想象出来个骷髅,穿着黑色斗篷,拿着锋利刀,它象征着死亡。

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3G, 401(K), a,
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