Air Traffic Management Bureau of East China
民航华东空管局
中国民航华东地区空中交通管理局上海气象中心
Comprehensive Geological Party of East China Metallurgical Geology Bureau
coastal region of East China
climate over East China Sea
Bohai Huanghai East China Sea
coastal shelf of East China Sea
Continental shelf of East China Sea
American east standard time
Beijing Graduate School East China Petroleum Institute
Beijing Graduate School of East China Petroleum Institute
coastal region of the East China Sea
coastal waters of the East China Sea