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关注：1
2013-05-23 12:21
求翻译：The physical properties necessary in a cutting tool are hardness at the metal-cutting temperature, which can be as high as 600︒C, and toughness.是什么意思？ 待解决
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The physical properties necessary in a cutting tool are hardness at the metal-cutting temperature, which can be as high as 600︒C, and toughness.
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