煤层底板突水是涉及地质学、煤矿开采学、岩体水力学和岩石断裂力学等学科的一个复杂问题。
It is a complicated problem involving several of subjects such as geology, coal mining, rock hydraulics and rock crack mechanics.
煤层底板突水是涉及地质学、煤矿开采学、岩体水力学和岩石断裂力学等学科的一个复杂问题。
It is a complicated problem involving several of subjects such as geology, coal mining, rock hydraulics and rock crack mechanics.
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