coal injection
短语词组
- coal strata injection 煤層注水
- coal powder injection equipment 高爐噴煤粉設備
- 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