Wood is charred by exposure to thermal radiation, the depth of the char being closely proportional to the radiant exposure.

木料受到热辐射照射后就会烧焦，烧焦的深度大致上与辐射照射成正比。

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Thermoluminescence studies of meteorites suggest that the level of natural TL in meteorites is determined by competition between build up, due to exposure to cosmic radiation, and thermal decay.

陨石热释光研究揭示了陨石中自然TL值取决于陨石暴露在宇宙空间时的宇宙射线辐照和自身热衰变之间的平衡。

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Then thermal cycling stability and radiation exposure experiments are performed to simulate the space environment.

然后，分别进行了热循环实验与射线辐照实验。

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Then thermal cycling stability and radiation exposure experiments are performed to simulate the space environment.

然后，分别进行了热循环实验与射线辐照实验。

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