coal injection

短语词组

短语

• coal strata injection 煤层注水
• coal powder injection equipment 高炉喷煤粉设备
• coal -injection duct 喷煤管
• coal seams injection 煤层注水
• coal mixed injection 混合煤喷吹
• coal oxygen injection lance 煤氧喷枪
• soft coal mixed injection 烟煤混喷
• coal powder injection [冶]喷煤
• coal seam injection 煤层注水
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