The higher the power density, the less the heat diffusion.

功率密度越大，丝表面温度越高。

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Plug in the power, medium heat diffusion can diffuse essential oils.

插上电源，中等热度就可以使精油扩散弥漫。

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Moisture transfer caused by heat diffusion and a moisture content gradient could be neglected.

因热扩散、含水率梯度引起的水分迁移可以忽略不计。

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The concept uses alternating materials with varying rates of diffusion to move heat around and create a thermally invisible region.

ENGADGET: Researchers working on thermal cloak, Predators trill their disapproval