中国沿海地区高质量发展的路径
孙久文, 蒋治

Paths of high-quality development in China's coastal areas
SUN Jiuwen, JIANG Zhi
图7 2012—2018年中国沿海北部、中部、南部地区专利申请数与专利授权数
Fig. 7 Number of patent applications and licenses in northern, central and southern coastal areas in China from 2012 to 2018