污垢热阻对传热效果影响很大,一般流体流速大,温度低时污垢热阻小,传热效果越好。
参考答案:对
Thank you ever so much for your congratulations and good wishes. I hope I can _____ to them. [ ]
A. look up
B. live up
C. add up
D. set up
孟浩然《秋登万山寄张五》一诗的语言特点。