Friday, February 16, 2024
绝对黑体完全服从兰贝特定律,其定向辐射强度在空间所有方向上是()。A、变量B、有差别的C、常量D、近似常量...
Monday, January 1, 2024
Friday, April 12, 2024
Monday, May 1, 2023
斯蒂芬-玻尔兹曼定律说明了黑体辐射力正比例于其绝对温度的四次方...
Thursday, September 15, 2022
Tuesday, October 17, 2023
当导热系数为常数时,热量通过平壁传递时,壁内温度()。...
Thursday, September 15, 2022
材料的导热系数随温度升高而增大时,平壁内温度呈向下的曲线...
Wednesday, November 22, 2023
Tuesday, October 17, 2023
表明最大单色辐射力的波长和绝对温度反比关系的定律是()。A、维恩位移定律B、傅立叶定律C、斯蒂芬-波尔兹曼定律D、普朗克定律...
Friday, May 10, 2024
Friday, February 16, 2024
()的辐射对波长有选择性。A、气体B、固体C、液体D、所有物体...
Thursday, October 19, 2023
Monday, September 12, 2022
对流换热的基本定律是()A、傅立叶定律B、牛顿冷却公式C、斯蒂芬-玻尔兹曼定律D、余弦定律...
Friday, February 16, 2024
Thursday, September 15, 2022
()的辐射光谱是不连续的。A、固体B、气体C、液体D、所有物体...
Sunday, July 30, 2023
在对流换热过程中,以温度变化为标志的边界层称为()。A、流动边界层B、动力边界层C、紊流边界层D、传热边界层...
Monday, May 15, 2023
从传热学角度分析为什么将双层玻璃间抽真空后隔热效果大幅上升?&#...
Monday, September 12, 2022
在自然对流给热中,给热速率主要取决于流体内的温度差大小...
Sunday, May 5, 2024
Monday, September 12, 2022