在巨大的钻孔机清理出一条小道后，横贯瑞士阿尔卑斯山下方世界上最长的隧道终于成形。这条隧道将建设成为穿过欧洲心脏地带的高速铁路通道的关键路段。

The world's longest tunnel will take shape deep beneath the Swiss Alps on Friday when a giant drilling machine clears a path for a key high speed railway through the heart of Europe.

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动态路段行程时间的预测是ITS动态最短路线选择的关键技术之一。

The estimation of dynamic road travel time is one of the key technologies for the dynamic choice of the shortest path in ITS.

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具体分析了路面接荐处以及特殊路段的碾压工艺和提高热拌沥青混凝土路面压实质量的关键技术。

It also analyzes the grinding and compaction technology for the combination point between the road surface and special road section, as well as the key technology to improve...

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