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一种对盾构隧道掘进机滚刀刀圈进行表面激光合金化处理的方法

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First Author:wangcunshan

Disigner of the Invention:韩立影,韩程旭,Lin Guoqiang

Application Number:CN201710195596.9

Authorization Date:2017-03-29

Authorization number:CN106929844A

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