In many projects, like the Simplon, for example, a small pilot tunnel is driven before the full diameter of the tunnel is excavated.
在许多隧道工程中，经如辛普龙大隧道，都要在隧道全面开挖前打一个导洞。
Sister train to Europe's Venice Simplon Orient Express, an open-air observation car allows heady aromas of the Orient to waft onboard.
同欧洲的威尼斯-辛普伦-东方快车一样，全景式观光车厢充满了浓郁的东方气息。
Sister train to Europe's Venice Simplon Orient Express, an open-air observation car allows heady aromas of the Orient to waft onboard.
同欧洲的威尼斯-辛普伦-东方快车一样，全景式观光车厢充满了浓郁的东方气息。
应用推荐