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| 11. | three-groove core drill |
| 三槽扩孔钻 |
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| 12. | sinking seafloor core drill |
| 沉入海底岩心钻机 |
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| 13. | spindle-type core drill |
| 立轴式岩心钻机 |
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| 14. | four-groove core drill |
| 四槽扩孔钻 |
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| 15. | three-lip core drill |
| 三缘空心钻头 |
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| 16. | taper shank core drill |
| 锥柄扩孔钻 |
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| 17. | all-hydraulic core drill |
| 液压岩心钻机 |
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| 18. | lever feed core drill |
| 手把给进岩心钻机 |
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| 19. | three-step core drill |
| 三级扩孔钻 |
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| 20. | straight taper shank core drill |
| 直锥柄扩孔钻 |
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