直射日光
an interior horizontal measurement of 1,000 lux or more of direct beam sunlight that accounts for window transmittance and angular effects, and excludes the effect of any operable blinds, with no contribution from reflected light (i.e., a zero bounce analysis) and no contribution from the diffuse sky component (Adapted from IES)
室内测得 1,000 勒克斯或更多的直射日光量,计入窗户透光率和角度影响,不包括任何活动窗帘的影响,也不包括反射光(即,零反射分析)和散射天空元素的影响(引自 IES)
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