Organic petrology in the coalmine security and coal utilization: mine fire, gas burst, coal slurry (CWM) and other less-conventional utilization technologies是什么意思_Organic petrology in the coalmine security and coal utilization: mine fire, gas burst, coal slurry (CWM) and other less-conventional utilization technologies在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句