THE STUDY ON TNE NINING METHOD AND GROUND PRESSURE PATTERN OF ACTIVITIES IN THE GA KE MINING DEPOSIT OF DOU NAN MANGANESE MINE是什麼意思_THE STUDY ON TNE NINING METHOD AND GROUND PRESSURE PATTERN OF ACTIVITIES IN THE GA KE MINING DEPOSIT OF DOU NAN MANGANESE MINE在線翻譯_英語_讀音_用法_例句