单词	extraction coal
释义	extraction coal 採煤
随便看	lining material Lining materials lining-membrane tissue lining metal lining method lining, monolithic lining mucosa lining of a purse lining of bearing lining of bearings lining of bottom lining of fire brick lining of firebricks lining of fire bricks lining of fire-bricks lining of flexible metal tubes with plastic lining of kitchen ranges lining of objects with lining lining of paraffin lining of shaft lining of shaft mouth in the open-pit area lining of sliding-contact bearings lining of the extrusion chamber lining of track lining of tunnel