EXPERIMENTAL RESEARCH ON HEAT TRANSFER AND FLOW FRICTION LOSS OF PIN-FIN CASING TUBE HEAT EXCHANGER UNIT是什么意思_EXPERIMENTAL RESEARCH ON HEAT TRANSFER AND FLOW FRICTION LOSS OF PIN-FIN CASING TUBE HEAT EXCHANGER UNIT在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句