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。
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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