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81. | deep trench excavation |
| 深沟挖掘;深沟开挖 |
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82. | Excavation of the site will begin tomorrow. |
| 明天开始挖掘工作。 |
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83. | pipeline plough |
| 管沟挖掘犁 |
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84. | beet lifter and collector |
| 甜菜挖掘集运机 |
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85. | unearth buried treasure |
| 挖掘深埋的宝藏 |
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86. | excavation and footing |
| 挖掘及地脚工程 |
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87. | Dredged up bitter memories. |
| 挖掘苦涩的记忆 |
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88. | Joint Exhumation Commission |
| 挖掘遗骸联合委员会 |
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89. | excavating depth |
| 挖掘深度;开挖深度 |
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90. | The mole bored underground. |
| 鼹鼠在地下挖掘. |
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