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Terms for subject Engineering geology containing 取 芯钻头 | all forms | in specified order only
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取芯钻头full-hole bit
不取岩芯钻头full-face bit
不取芯岩芯钻头non-coring bit
不取芯金刚石钻头plug bit
冲击取芯钻头percussive coring bit
芯钻头rock core bit
取芯钻头ring bit
取芯钻头coring-type bit
取芯钻头coring bit
薄壁取芯钻头narrow kerf core bit
软岩取芯用齿状钻头calyx
金刚石取芯钻头diamond plug bit
锥形金刚石不取芯钻头cone bit