常見(jiàn)例句A new method of measuring target wideband emissivity is presented. 摘要提出了一種新的測(cè)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(lái)降低光學(xué)反射或輻射的塗料。The use of metallised fabrics is sometimes proposed to reduce the emissivity of a fabric. 不時(shí)地有人建議採(cǎi)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)射率更爲(wèi)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微米処;天空的發(fā)射率約爲(wèi)0.;1;而一架普通望遠(yuǎn)鏡的發(fā)射率爲(wèi)0 返回 emissivity