常見例句A new method of measuring target wideband emissivity is presented. 摘要提出了一種新的測量發(fā)射率的方法。Calculate of the "True" Emissivity of the Spherical Cavity[J]. 引用該論文 羅華平;楊高潮;紀(jì)玉峰;宋正方.Coatings specially designed for reduced optical reflectivity or emissivity. 十七、專門設(shè)計(jì)用來降低光學(xué)反射或輻射的涂料。The use of metallised fabrics is sometimes proposed to reduce the emissivity of a fabric. 不時地有人建議采用鍍有金屬膜的織物以減少織物的發(fā)射率。In the solar and near infrared region it is more usual to speak of absorptivity than emissivity. 在日射和近紅外區(qū)段內(nèi),討論吸收率比討論發(fā)射率更為普遍。At 10 um the emissivity of the sky is about 0. 1, whereas for a conventional telescope it is 0. 5. 在10微米處;天空的發(fā)射率約為0.;1;而一架普通望遠(yuǎn)鏡的發(fā)射率為0 返回 emissivity