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The material in the large plastic zone has been hardened .
在大塑性区内材料已经硬化。
youdao
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It has wide application rage from common material treatment to process hardened steel.
可由一般为处理材料一直加工到淬火钢，适用范围广。
youdao
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It has wide application rage from common material treatment to process hardened steel.
可由一般为处理材料一直加工到淬火钢，适用范围广。
youdao