Applying Three-phase Foam Technology to Control Coal Spontaneous Combustion in High Inclination-angel and Dip Full-mechanized Sublevel Caving Faces是什么意思_Applying Three-phase Foam Technology to Control Coal Spontaneous Combustion in High Inclination-angel and Dip Full-mechanized Sublevel Caving Faces在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句