增加这些新系统的采购与研发是中国在国土防空网络方面的进步，后者从2007年以来已经遍布全国。
Complementing the purchase and development of these new systems are improvements in China's national air defense network, which, since 2007, spans the entire country.
分管规划、城建、国土与房管、环境保护(节能减排)、人民防空、交通邮电工作。
In charge of planning, urban construction, land and housing management, environmental protection (energy reduction), people's air defense, Transportation, posts and Telecommunications.
分管规划、城建、国土与房管、环境保护(节能减排)、人民防空、交通邮电工作。
In charge of planning, urban construction, land and housing management, environmental protection (energy reduction), people's air defense, Transportation, posts and Telecommunications.
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