[问答题]常用的强化或削弱物体之间辐射传热的辐射有哪两种？

参考答案：改变物体表面的黑度；采用遮热板。

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● 辐射传热物体的固有特性，自然界中的一切物体均以辐射方式向空间传递能量，物体自身温度越（），辐射传递出的能量也越多。辐射传热的特点是不需要（），只有当物体的温度降到绝对零度时，物体的辐射传热现象才告终止。
● 根据辐射传热的理论，要强化传热过程，下列哪个说法错误（）
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