“urban external transport system”的概念、定义、翻译、参考文献-科学参考

单词	urban external transport system
释义	urban external transport system Encyclopedia 工学城市交通系统释 urban external transport system城市对外交通系统以城市为基点，与城市外部空间（其他城市、乡村）进行联系的各种交通运输的总称。主要包括铁路、公路、航空、水运及其客运枢纽。
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