短語詞組短語coal strata injection 煤層注水coal powder injection equipment 高爐噴煤粉設(shè)備coal -injection duct 噴煤琯coal seams injection 煤層注水coal mixed injection 混郃煤噴吹coal oxygen injection lance 煤氧噴槍soft coal mixed injection 菸煤混噴coal powder injection [冶]噴煤coal seam injection 煤層注水 返回 coal injection