The research purpose-of this paper is to analyses and discusses possibility of this craft of adoption parted type structure to make tamping pick.
本论文主要分析讨论采用分体式结构制造捣镐这一工艺的可行性。
The research purpose-of this paper is to analyses and discusses possibility of this craft of adoption parted type structure to make tamping pick.
本论文主要分析讨论采用分体式结构制造捣镐这一工艺的可行性。
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