Support a very high level of safety for new passenger rail service..
为新铁路客运服务提供高安全保障。
2
Sea level rise will continue, increasing the likelihood of temporary and permanent flooding of airports, roads, rail lines and tunnels.
海平面将继续上涨，从而增加机场、道路、铁路、隧道等短期甚至永久被洪水淹没的可能。
3
To install the crane span before installation, camber, level of metal structure of main girder bending, trolley rail height difference, gauge deviation, diagonal bridge survey.