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28. 两流体可作严格逆流的换热器是( )。
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28. 两流体可作严格逆流的换热器是( )。
A、板翅式换热器
B、U型管式列管换热器
C、浮头式列管换热器
D、套管式换热器
时间:2021-09-01 19:09
关键词:
青书学堂
延安大学
基础化学(专升本)
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D
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两流体可作严格逆流的换热器是( )。
28. 两流体可作严格逆流的换热器是( )。
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在列管式换热器中,冷流体的进出口温度为20℃和80℃,热流体的温度由150℃降为90℃,则逆流时的平均温差是 。
下面关于间壁式换热器中的冷热流体并流与逆流换热说法正确的是( )。
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翻译:With Average or With Particular Average(WA or WPA)()
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