n.回焰蒸汽鍋爐 horizontal return tubular boiler: 臥式回管鍋爐return tubular boiler: 回焰鍋爐return tabular steam boiler: 回焰蒸汽鍋爐tubular boiler: 管子鍋爐; 火管鍋爐; 水管式鍋爐multitubular boiler,tubular boiler: 火管鍋爐下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯