Select Plastic Material with large thermal diffusivity.

选择热扩散系数大的塑料。

The thermal diffusivity of steel and graphite is measured.

测量了钢和石墨的热扩散率。

In materials marked by low thermal diffusivity, the absorption is good.

热扩散率低的物质吸收性好。

The results show that the thermal diffusivity decrease with annealing temperature elevating.

结果表明：纳米氧化铝的热扩散率随退火温度的升高而减小。

In heterogeneous anisotropic materials the thermal diffusivity cannot be described by a single number.

非均质物质中，热扩散率不可能用一个简单数字来表达。