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71. | highway grinder |
| 道路研磨机 |
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72. | roadway geometry |
| 道路几何学 |
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73. | retreading road |
| 道路翻新 |
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74. | serpentine road | winding road |
| 弯曲道路 |
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75. | The road is clear. |
| 道路通畅。 |
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76. | boundary lines of roads |
| 道路红线 |
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77. | highway survey |
| 道路测量 |
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78. | airport roadway |
| 机场道路 |
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79. | village road |
| 农村道路 |
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80. | mountainous road |
| 山区道路 |
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