Internal migration and long-term development strategy of China 英文题名:Internal migration and long-term development strategy of China study on the medium and long term development strategy of Shanxi On the qcean century and marine development strategy of China Research on land and marine coordinated development strategy of China 并列题名：World maritime politocs and ocean development strategy of China World maritime politocs and ocean development strategy of China 并列题名：Research on land and marine coordinated development strategy of China Research on technology transfer development strategy of China 并列题名：On the qcean century and marine development strategy of China