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3.2.比辐射率校正误差辐射温度计时,把由下式求出的n叫做辐射温度计的指数n,这是表示测温性能的指标。(?)被测物的比辐射率ε的变化△ε和由△ε引起的辐射率L的变化△L的关系为
3.2. Emissivity correction error Radiation thermometer, the following formula to find the n called the radiation thermometer index n, which is an indicator of temperature performance. (?) The relationship between the change? E of the specific emissivity? Of the object to be measured and the change? L of the emissivity L caused by ?? is