The thermograph obtained by a thermal imaging system is only the distribution of radiant temperature of the surface of measured devices, not the true temperature.
用红外热成像系统直接获得的热像图，是被测器件表面辐射温度的分布，并不是真实温度的分布。
Temperature and surface emissivity are the two factors that determine the IR radiant intensity of an object.
影响目标红外辐射亮度有两个因素：表面温度和发射率。
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