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| 71. | V-shaped nasal gouge |
| 鼻中隔鱼尾凿 |
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| 72. | cowmouth chisel |
| 牛嘴凿 |
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| 73. | London screwdriver |
| 伦敦旋凿 |
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| 74. | oil well drilling machinery |
| 凿油井机 |
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| 75. | pneumatic chipping chise |
| 气动剁凿 |
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| 76. | reperforator head |
| 复凿机头 |
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| 77. | pitch-faced stone |
| 凿面石 |
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| 78. | firmer gouge chisel |
| 半圆木凿 |
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| 79. | splitting chisel |
| 开尾凿 |
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| 80. | Pitch face |
| 斜凿面 |
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