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31. | pretensioned bolt |
| 预张力锚杆 |
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32. | To eat ravenously. |
| 狼吞虎咽贪婪地吃 |
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33. | eat like a wolf |
| 贪婪地吃|狼吞虎咽 |
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34. | assembling bolt |
| 装配螺栓;组合螺栓 |
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35. | He gulped his food. |
| 他狼吞虎咽地吃东西。 |
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36. | stripper Bolt |
| 脱料螺栓 |
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37. | He wolfed his meal down. |
| 他狼吞虎咽地吃了饭。 |
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38. | convergence bolt |
| 会聚螺栓 |
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39. | toggle bolt |
| 系墙螺栓 |
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40. | semifinished bolt |
| 半光制螺栓 |
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