daylight factor昼: daytime; daylight; day光: light; ray系数: coefficient; ratio; modulus; ...昼光系数自然照明系数: day-light ratio比吸光系数: specific absorptivity下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:昼光系数,即可在微信中查询翻译