中国同俄罗斯东部边界冲突的部分解决,使中国将前线注意力从北方转移到南方,从内陆地区转移到南部及东部中国海的蓝色海域。80年代中期,中国将12海里专属经济区扩大至200海里。不久前,完成了这些地区的矿产及海洋资源的勘探。据估计,大约有500亿吨天然气及石油(相当于2.5万亿美元)储藏在东部及南部中国海。中国需要这些资源以确保上海浦东及广东华南等开发区的需求。 The partial settlement of China's clashes with the eastern border of Russia has caused China to shift its front line attention from the north to the south and from the inland areas to the blue waters of the southern and eastern Chinese seas. In the mid-1980s, China expanded its 12-nautical-mile exclusive economic zone to 200 nautical miles. Not long ago, the exploration of mineral and marine resources in these areas was completed. It is estimated that about 50 billion tons of natural gas and oil (equivalent to 2.5 trillion U.S. dollars) are stored in the eastern and southern China seas. China needs these resources to ensure demand in the development zones such as Shanghai Pudong and Guangdong South China.