coefficient of heat conductivity
导热系数：指物质导热性能的一个物理量
常用释义
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基本释义
- 导热系数：指物质导热性能的一个物理量，表示单位时间内单位面积上的热量传导量与温度梯度之比。
例句
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1·The contents and characteristics of the virtual experiment courseware of Determining the Coefficient of Heat Conductivity is introduced in detail.详细介绍了导热系数的测定虚拟实验课件的内容及特点。
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2·Roofing heat preservation material should be chosen, disrupting the apparent density is small, coefficient of thermal conductivity (small) materials.屋面保温材料应选用孔隙多、表观密度小、导热系数(小)的材料。
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3·The effects of absorption coefficient, refractive index, heat conductivity, convective heat-transfer coefficient and radiative properties of the surf ace on the temperature field are discussed too.物料加热表面受到对流冷却，并讨论了物料的吸收系数，折射率，导热系数，换热系数，物料表面辐射特性对温度场的影响。
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4·Local convection heat transfer coefficient decreases along the micro-tube by 12.5% for the influence of thermal conductivity of liquid nitrogen.微通道中局部对流换热系数受到液氮导热系数变化的影响沿管程逐渐下降约12.5%。
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5·Experimentation for coefficient of thermal conductivity and specific volume heat of loess is explored first; and the experimental installation is installed.首先探讨了黄土导热系数和比热容的测试方法，组装形成黄土土样试验装置。
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6·The test data show that for loess with constant water content, if the density is increased, the coefficient of thermal conductivity and specific volume heat both are increased.实验结果揭示出，在含水量一定的情况下，导热系数和比热容随密度增大而增大；在密度相同的情况下，导热系数和比热容亦随含水量的增大而增大。
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7·This paper briefly introduces the performance requirements of the insulating materials such as the thermal conductivity, heat expansion coefficient, and density, etc.简要介绍了保温隔热材料的性能要求（如导热系数、密度、膨胀系数等）、作用原理以及影响材料导热系数的主要因素。
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8·Calculation formulas of conductivity coefficient and specific heat were put forward by analyzing the heat physical characteristics of the new polymer mortar.通过分析这种新型聚合物砂浆的热物理特性，提出了热传导系数和比热容的计算公式。
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9·The effect of crucible heat conductivity can be neglected when heat transfer coefficient between crucible side and environment remains large enough.并且认为当坩埚侧面与环境的热交换系数很大时，坩埚热导率的影响作用变小。
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10·Synthetic diamond is competitive in heat dispersing materials, because it has high thermal conductivity, low coefficient of thermal expansion and lower price.人造金刚石由于其自身高的热导率、低的热膨胀系数和相对低的价格已成为制造新型散热材料的研究热点。