材料直接传导热量的能力称为热传导率，或称热导率（Thermal Conductivity）。热导率定义为单位截面、长度的材料在单位温差下和单位时间内直接传导的热量。热导率的单位为瓦/米/开尔文（W/（m·K)）。
热传导率因不同气体而异。
最后，讨论了纳米金属薄膜的平面和跨平面的热传导率的表征方法。
Lastly, characterization of both in-plane and cross-plane thermal conductivities in nano metal films with nanosecond laser spectroscopy will be demonstrated.
而热损伤不仅与激光的波长有关，还与热传导率和热扩散所需时间有关。
And thermal injury not only has something to do with laser's wavelength, but also has something to do with the time of thermal conductivity and thermal proliferation.
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