heavy-duty boiler 中文意思是什麼
heavy-duty boiler
解釋
大容量鍋爐-
Development and application of heat - resistant heavy - duty special paint for purifying facilities of waste gas from coal - burning boiler
燃煤鍋爐尾氣凈化設備耐高溫重防腐專用塗料的研製及應用
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