“urban transportation problems in China”的概念、定义、翻译、参考文献-科学参考

单词	urban transportation problems in China
释义	urban transportation problems in China Encyclopedia 理学中国城市问题释 urban transportation problems in China中国城市交通问题在中国城市内部，人口、产业等要素集聚引起对交通运输产生巨大需求与实际供给不匹配的现象。
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