【单选题】在蒸汽 -空气间壁换热过程中,为强化传热( )在工程上可行。
【单选题】蒸汽—空气间壁换热过程,为强化传热,下列方案中的 在工程上是可行的。
C.
蒸汽侧管壁上装翅片,增加冷凝面积并及时导走冷凝液
【简答题】When I was about 12, a girl in my class liked to point out my problems. I was too thin; I wasn’t a good student; I talked too much, I was too 46 , and so on. At last, I became very angry and ran to my...
【单选题】Jack and I _____ the driving, so the trip wasn’t too tiring.
【单选题】在蒸汽一空气间壁换热过程中,为强化传热,下列方案中的______在工程上可行。
【简答题】2 调查报告的结尾形式有( ) A 总结全篇主要观点 B 提出希望和号召 C 指出问题 提出建议 D 指出远景预测未来 E不需要结尾
【简答题】When I was about 12, a girl in my class liked to point out my problems. I was too thin; I wasn’t a good student; I talked too much; I was too 61 , and so on. At last, I became very angry and ran to my...
【简答题】2 调查报告的结尾形式有( ) A 总结全篇主要观点 B 提出希望和号召 C 指出问题 提出建议 D 指出远景预测未来 E不需要结尾
【单选题】蒸汽-空气间壁换热过程为强化传热,下列方案中的____在工程上是可行的。
B.
蒸汽侧管壁上装翅片,增加冷凝面积并及时导走冷凝液
【单选题】蒸汽一空气间壁换热过程为强化传热,下列方案中的( )在工程上是可行的。
B.
蒸汽侧管壁上装翅片,增加冷凝面积并及时导走冷凝液