但是，我国煤炭资源地域分布不均衡，复杂的煤矿开采技术条件和生态环境制约着我国能源基地煤炭资源的开发。
However, the resource-bearing regions distribute uneven. The conditions of complex coal mining technology and biological environments limit the coal resource development of energy bases.
但是，我国煤炭资源地域分布不均衡，复杂的煤矿开采技术条件和生态环境制约着我国能源基地煤炭资源的开发。
However, the resource-bearing regions distribute uneven. The conditions of complex coal mining technology and biological environments limit the coal resource development of energy bases.
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