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| 81. | under river tunne |
| 河底隧道 |
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| 82. | tunnel clearance |
| 隧道限界 |
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| 83. | tunnel emission |
| 隧道发射 |
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| 84. | Huangtuling Tunnel |
| 黄土岭隧道 |
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| 85. | tunnel engineering |
| 隧道工程 |
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| 86. | Beacon Hill Tunne |
| 笔架山隧道 |
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| 87. | tunnel resistor |
| 隧道电阻器 |
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| 88. | Tunnel ahead |
| 前有隧道 |
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| 89. | tunneling formwork |
| 隧道模板 |
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| 90. | railway tunnel |
| 铁路隧道 |
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