- 钻孔 drill; bore; drill hole perf ...
- 的 4次方是 The fourth power of 2 i ...
- 岩心 core
- 钻具 drilling tool; drilling rig
- 岩心钻孔 core hole
- 可更换的岩心钻头 retractable core bit
- 金刚石取心钻具岩心筒 core shell
- 金刚石岩心钻探钻具设备 diamond core drilling equipment conventional system
- 取芯钻具 取芯钻头 岩心钻头 钻心 corebit
- 岩心钻 coredrill; rock core drill
- 钻孔的 perforated
- 取心钻具 core drill
- 补取的岩心 offset core
- 冲击岩心钻 percussion rock drill
- 取岩心钻头 coring bit
- 无岩心钻进 full hole drilling; non-coring drilling
- 无岩心钻头 blast hole bit
- 岩心钻采 core drilling
- 岩心钻机 core drill machine; core drilling machine; coring machine; rock-core borer
- 岩心钻进 core boring; core drilling; coredrilling; coring; ring drilling
- 岩心钻进法 core drilling method
- 岩心钻探 core drilling; core-drilling
- 岩心钻头 core bit; core drill bit; corebit; coring bit; coring crown; hollow bit; jack bit
- 萼状岩心钻 calyx core drill
- 内中心钻孔 internal center drilling
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