It briefly introduces roadbed and road pavement stricture, bridge engineering and municipal-service tunnel.

至于路基路面结构、城市桥梁、隧道规划只作简单介绍。

youdao

Hundreds of people were evacuated from its two 200-metre sections in the space of 20 minutes, to take refuge in a central service tunnel.

数百人在20分钟内从200米长的车厢中疏散出来，避难到隧道的一个中央服务站。

youdao

The ferry service of bygone days has been replaced by that tunnel.

往日的渡口已被那个隧道取代。

《新英汉大辞典》

Eurotunnel said it was managing to clear the backlog of cars and lorries waiting to use its Channel Tunnel car service.

BBC: Traffic jam

The recent and upcoming changes are partly in anticipation of competition from Deutsche Bahn for train service through the Channel Tunnel, which Eurostar has monopolized until now.

CNN: Eurostar imitates airlines to stay on track

It will include a Swiss-style 55km tunnel, with a piggyback service for lorries.

ECONOMIST: Switzerland