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| 11. | When a student recently saw two workmen using a pneumatic drill outside his university, he immediately telephoned the police and informed them that two students dressed up as workmen were tearing up the road with a pneumatic drill. |
| 最近有个学生看见两个人工人在大学校门外用风钻干活，马上打电话报告警察，说有两个学生装扮成工人，正在用风钻破坏路面， |
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| 12. | The noise from that pneumatic drill outside gets on my nerves. |
| 外面风钻的噪音真使我心烦。 |
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| 13. | The invention of pneumatic drill. This device compressed air to bore holes in the rock. |
| 风钻的发明。这种工具用压缩空气在岩石中打洞。 |
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| 14. | We have grounds for a warrant to jackhammer this floor. |
| 我们该有个许可证 可以把风钻拿来 |
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| 15. | As the men refused to stop working, the police attempted to seize the pneumatic drill. |
| 由于工人拒不停工，警察试图强夺风钻。 |
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| 16. | The retiring miner delivered his pneumatic drill over to his successor. |
| 这位即将退休的矿工把风钻移交给他的接班人， |
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| 17. | percussion borer |
| 风钻|凿岩机|冲击式钎子|冲击式钻机 |
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| 18. | When a student recently saw two workmen using a pneumatic drill outside his university, |
| 最近有个学生看见两个工人在学校门外用风钻干活， |
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| 19. | that two students dressed up as workmen were tearing up the road with a pneumatic drill. |
| 说有两个学生装扮成工人，正在用风钻破坏路面。 |
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| 20. | A hand - held machine for drilling rock and breaking up pavement, operated by compressed air. |
| 手挂式风钻，轻型凿岩机通过压缩空气运转的钻岩石、挖隧道的手持机器 |
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