THE MASS TRANSFER OF DOWN-FILM ABSORBER IN THE NH_3 ABSORPTION REFRIGERATION MACHINE AND THE ENHANCEMENT OF HEAT TRANSFER IN THE ABSORBER是什么意思_THE MASS TRANSFER OF DOWN-FILM ABSORBER IN THE NH_3 ABSORPTION REFRIGERATION MACHINE AND THE ENHANCEMENT OF HEAT TRANSFER IN THE ABSORBER在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句