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41. | to dig new channels |
| 挖掘新道 |
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42. | excavating area |
| 挖掘区 |
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43. | excavating plough |
| 挖掘犁 |
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44. | To dig a sap. |
| 挖掘坑道 |
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45. | excavator factor |
| 挖掘系数 |
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46. | digging efficiency |
| 挖掘效率 |
|
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47. | excavating equipment |
| 挖掘设备 |
|
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48. | selective excavation |
| 选择挖掘 |
|
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49. | excavation deformation |
| 挖掘错动 |
|
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50. | To dig trenches |
| 挖掘堑壕 |
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