luminous reflection factor

См. также в других словарях:

• reflectance — /rəˈflɛktəns/ (say ruh flektuhns) noun the ratio of the luminous flux reflected by a surface to the incident luminous flux. Also, reflection factor. {reflect + ance} …  

• literature — /lit euhr euh cheuhr, choor , li treuh /, n. 1. writings in which expression and form, in connection with ideas of permanent and universal interest, are characteristic or essential features, as poetry, novels, history, biography, and essays. 2.… …   Universalium

• nebula — nebular, adj. /neb yeuh leuh/, n., pl. nebulae / lee , luy /, nebulas. 1. Astron. a. Also called diffuse nebula. a cloud of interstellar gas and dust. Cf. dark nebula, emission nebula, reflection nebula …   Universalium

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