flat-top tunnel 平顶隧道
long-span flat tunnel 大跨度扁坦隧道
large span flat tunnel 大跨度扁坦隧道
flat-top burial tunnel 平顶暗挖隧道
They pressed themselves flat against the tunnel wall as the train approached.
火车接近时他们身体紧贴着隧道壁。
It includes the slowest turn in all of F1, the hairpin at Grand Hotel, where cars slow to 40 MPH, and one of the fastest, a flat-out sweeper through a tunnel taken at 160 MPH.
它拥有F1中最慢的一个转弯,大宾馆处的发夹弯,车速慢到64公里时速,以及时速最快的一个转弯,在一个隧道处的时速达到257公里。
Thee tunnel's course is flat and straight instead of winding up through the mountains like the old rail tunnel and a road tunnel opened in 1980.
圣哥达隧道走势平直,没有仿效过去的铁路隧道和1980年投入使用的公路隧道环山的设计。 。
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