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| 31. | excavating gear |
| 挖掘装置 |
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| 32. | To dig trenches |
| 挖掘堑壕 |
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| 33. | excavated surface |
| 挖掘表面 |
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| 34. | footing excavation |
| 基础挖掘 |
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| 35. | excavating radius |
| 挖掘半径 |
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| 36. | excavated diameter |
| 挖掘直径 |
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| 37. | excavating receptacle |
| 挖掘盛器 |
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| 38. | excavation bottom |
| 挖掘基底 |
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| 39. | Excavation heaps |
| 挖掘堆积 |
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| 40. | tap production potential |
| 挖掘生产潜力 |
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