综采放顶和一次采全高两种采煤方式对煤炭质量影响与效益测算

综采放顶和一次采全高两种采煤方式对煤炭质量影响与效益测算的英文翻译

基本释义

• To Compare Effects of Two Method on Coal Quality and Economic Results between the Fully-mechanized Mining with Roof Caving and the method of One-time Cutting Whole Height