...；激光焊接；金刚石钻头 [gap=571]Key words：manipulator；automatic control system ；laser welding；diamond core drill bit ...
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diamond-mpregnated core drill bit 金刚石岩心钻头
diamond-impregnated core drill bit 金刚石岩心
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A new type of thin-wall diamond core drill bit is developed through the analysis of drilling feature on the r.
通过对在钢筋混疑土、花岗岩等建筑物上钻孔特点的分析，本文设计了一种新型的取芯式薄壁金钢石钻头。
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