热导率的英文：
coefficient of thermal conductivity
heat conductivity
heat diffusivity

参考例句：

The greatest dependence upon temperature is shown by rocks with high conductivities at room temperature e.g. salt
在室温下，高热导率岩类(如盐类)的热导率对温度的反应最大。

The anisotropy of the thermal conductivity is essentially independent of the temperature not up to 200-300 C
如果温度不超过200-300℃，则热导率的各向异性现象基本上与温度无关。

coefficient是什么意思：
n. 系数；率
adj. 共同作用的

Coefficient of viscous traction (=Trauton's coefficient)
拉伸粘性系数,粘性曳引系数

The binomial coefficients are ubiquitous in Combinational Theory
二项系数在组合论中有普遍的应用。

Pascal published a treatise on binomial coefficient.
帕斯克发表了关于二项系数的论文。

conductivity是什么意思：
n. 导电率,传导率,传导度

Their conduct and etiquette are governed by the Code of Conduct for the Bar of the HKSAR.
律师的操守和业内成规，受香港大律师公会专业守则所约束。

The reporter was accused of unprofessional conduct.
那位记者被控有违反职业道德的行为。

Such conduct will compromise your reputation.
这些举动将会损害你的名誉。