The countercurrent mode has a simple scheme of pressure energy recovery,needing neither CO burner nor steam superheating devices,and about 98%of the flue gas pressure energy can be recovered.是什么意思_The countercurrent mode has a simple scheme of pressure energy recovery,needing neither CO burner nor steam superheating devices,and about 98%of the flue gas pressure energy can be recovered.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句