导热系数、蓄热系数、传热系数等是建筑热工设计中常用的几个性能指标。本文通过论述，指出这几个系数之间的关系及它们对建筑物保温性能的影响。 Thermal conductivity, heat storage coefficient, heat transfer coefficient and so on are several commonly used performance indicators in building thermal engineering design. Through the discussion, this article points out the relationship between these several factors and their influence on the insulation performance of buildings.