在下坡道上，自行车手们飞快地掠过汽车，靠惯性极速冲下山去。
On the descents, cyclists spin past cars, freewheeling downhill at tremendous speed.
列车在下坡道区间循环制动时的再充气是影响列车安全运行的关键问题。
It is the key issue to affect the operation safety that air charge once more when trains apply cycle breaking on Downhill Slope interval.
研究结果对于我国重型车辆山区连续下坡道路安全行驶提供合理的解决方案。
The study results provided a reasonable solution for the safety of heavy vehicles traveling downhill mountain in our country.
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