The regional and international combo network is integrated with domestic trunk and feeder lines.
地区和国际航线网络与国内支干线航班有机结合。
2
Then divides the highway network into four levels: main trunk line, sub-trunk, feeder and connecting line, and also positions functions of the four levels.
All means of intermodal transport are carefully integrated with trunk ocean services to offer seamless connections across continents using feeder services, barges, trucks and block trains.