metro 四级六级专八

Introduced are the present situation and development of driverless metro technology in North America, Europe and Japan.

介绍了北美、欧洲和日本等国家无人驾驶铁技术的现状及发展情况。

By Metro:- Take the blue line of the metro to Syntagma Metro Station.

酒店以帮您租借轿车或自行车，还帮您提供出租车服务。

Undercrossing tunnels are frequently constructed by the shield-driven method in metro projects.Shield tunneling affects the existing tunnel inevitably.

摘要在铁工程中，常采用盾构法修建正交下穿隧道，新隧道的掘进免对既有隧道产生影响。

The transit tunnel between station Dajuyuan and station Kexueguan of Shenzen metro passes through fluidal plastic clay soils which should be strengthened in advance before excavation.

深圳铁大剧院站—科学馆站区间隧道在流塑状粘性土等良质条件下穿过,需采取超前预加固措施。