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集总参数法的适用条件是: Bi ≤ 0.1 (或 BiV ≤ 0.1M ),意味着( )

单选题
2021-09-01 22:34
A、该物体的体积很小
B、该物体的导热系数很大
C、该物体表面的对流换热热阻远大于内部的导热热阻
D、该物体表面的对流换热热阻远小于内部的导热热阻
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正确答案
C

试题解析

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集总参数法的适用条件是: Bi 0.1 (或 BiV 0.1M ),意味着(  )
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