- 独: single; only; sole
- 牙轮钻头: tri-cone rotary drill bit
- 差异式独牙轮钻头: zublin differential bit
- 六牙轮钻头: six-roller bit
- 三牙轮钻头: three roller bit; three-cone bit; three-roller bit; tricone bit; tricone rock bit; trionebit
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