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| 21. | digging efficiency |
| 挖掘效率 |
|
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| 22. | evacuation works |
| 挖掘工程 |
|
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| 23. | excavating area |
| 挖掘区 |
|
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| 24. | selective excavation |
| 选择挖掘 |
|
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| 25. | excavating plough |
| 挖掘犁 |
|
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| 26. | excavation deformation |
| 挖掘错动 |
|
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| 27. | excavator factor |
| 挖掘系数 |
|
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| 28. | to dig new channels |
| 挖掘新道 |
|
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| 29. | excavating equipment |
| 挖掘设备 |
|
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| 30. | To dig a sap. |
| 挖掘坑道 |
|
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