... trunk line service 干线运输 trunk line traffic 干线运输 trunout on inside of a curve 曲线内方分岔 ...
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Because of the rapid increasement of the population and vehicle in cities, the city-trunk-line-traffic-control should be accomplished as soon as possible.
由于城市人口和车辆的急剧增加，城市干线交通控制已经成为当前迫切需要解决的问题。
Effective city-trunk-line-traffic can greatly reduce environmental pollution and traffic costs.
高效的城市干线交通可以大大降低环境污染以及交通成本。
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