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21. | excavation depth |
| 挖掘深度 |
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22. | selective excavation |
| 选择挖掘 |
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23. | To dig a sap. |
| 挖掘坑道 |
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24. | excavated diameter |
| 挖掘直径 |
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25. | To dig trenches |
| 挖掘堑壕 |
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26. | excavating receptacle |
| 挖掘盛器 |
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27. | excavated surface |
| 挖掘表面 |
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28. | Excavation heaps |
| 挖掘堆积 |
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29. | excavating radius |
| 挖掘半径 |
|
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30. | excavating gear |
| 挖掘装置 |
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