drilling steel steel chisel 钢钎
chisel drilling
凿钻
以上为机器翻译结果,长、整句建议使用 人工翻译 。
To raise drilling performance of new micro-drill, a novel method was advanced for reginding of chisel edge.
为了提高新型微钻头的钻削性能,提出了一种适合于微钻头的横刃修磨原理及方法。
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