基于货物结构的中国沿海港口运输职能判别
王伟, 王成金, 金凤君

The classification of transportation function of China's coastal ports based on cargo structure
Wei WANG, Chengjin WANG, Fengjun JIN
图2 综合性、一般性、专业化港口的地域分布
Fig. 2 Distribution of comprehensive ports, general ports and specialized ports