本文给出了计算多层绝热中辐射与热传导的方程式。该式考虑了间隔物的散射和吸收特性。为检验理论,制订了一种专门程序。实验证明,当间隔物与屏的接触增大时,其散射特性转变为吸收特性,多层绝热中的相对传热可能增强。 In this paper, the equations for calculating radiation and heat conduction in multilayer insulation are given. This equation takes into account the scattering and absorption characteristics of the spacer. To test the theory, a special procedure has been devised. Experiments show that when the spacer increases the contact with the screen, the scattering characteristics of the spacer change to the absorption characteristics, and the relative heat transfer in the multilayer insulation may be enhanced.