线性减光系统使积分球出射口的辐亮度从最大值按照10%递减，线性输出10档辐亮度值。
The linear dimming system makes the radiance of the sphere exit portal decrease prorata 10% from the maximum radiance.
线性减光系统使积分球出射口的辐亮度从最大值按照10%递减，线性输出10档辐亮度值。
The linear dimming system makes the radiance of the sphere exit portal decrease prorata 10% from the maximum radiance.
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