短語詞組短語sunshine e duration 日光時(shí)間relative sunshine duration 日照百分率;日照率;相對(duì)日照時(shí)數(shù)sunshine duration recorder 日照延時(shí)記錄器astronomical sunshine duration 天文日照時(shí)間annual sunshine duration 年日照時(shí)數(shù)Mean annual sunshine duration 年平均日照時(shí)數(shù)daily possible sunshine duration 照時(shí)間maximum possible sunshine duration 最大可能日照時(shí)數(shù) 返回 sunshine duration