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隧道通风
| 风道
| 隧道通风 | |
| wind. | tunnel ventilation |
| 风道 | |
| exhib. | airway |
| hydroel.st. | whirl tube; air passage |
| space | air-tunnel; vent line |
| |||
| tunnel ventilation | |||
| 隧道通风: 16 phrases in 2 subjects |
| Rail transport | 8 |
| Technology | 8 |
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