GB 50067-2014 第6.0.7条
| **** | For the clear width of vehicle evacuation ramps, a single lane shall not be less than 3.0 m, and a double lane shall not be less than 5.5 m. |
| **** | For the clear width of vehicle evacuation ramps, a single lane shall not be less than 3.0 m, and a double lane shall not be less than 5.5 m. |
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