white - of or belonging to a racial group having light skin coloration; "voting patterns within the white population" black - of or belonging to a racial group having dark skin especially of sub-Saharan African origin; "a great people--a black people--...injected new meaning and dignity ...
The meaning of WHITE is having the color of new snow or milk; specifically : of the color white. How to use white in a sentence.
It is worth reviewing the meaning of ‘white’ at this juncture as it has three distinct senses in the development above, according to context: • White light –an illuminant with all wavelengths equally represented, i.e. a flat spectrum. • White object –diffusely and uniformly scattering...
Carbon neutrality, energy savings, and lighting costs and quality have always led to urgent demand for lighting technology innovation. White light-emitting diodes (WLEDs) based on a single emissive layer (SEL) fabricated by the solution method have been
White light seems to be a combination of all colors. The energy that comes from a source of light is not limited to the kind of energy you can see. Heat is given off by a flame or an electric light. On a cloudy day it is possible to get a sunburn even though you feel cool. Vis...
White-light Emitting and Energy Transfer Mechanism in the Ce3+, Tb3+ and Eu3+ co-Doped Sr2MgSi2O7 Phosphor Wu J,Zhang J L,Zhou W L,et al.White-light Emitting and Energy Transfer Mechanism in the Ce3+,Tb3+and Eu3+co-Doped Sr2Mg Si2O7Phosphor[J]... W Jing,J Zhang,W Zhou...
题目二、完成句子,每空一词。1.光是一种能量。Lightisenergy.2.白光下的颜色有红色,橙色,黄色,绿色,等等。The colors in white light are red, orange, yellow, green 相关知识点: 试题来源: 解析 二1. a kind of 2. and so on 反馈 收藏
Modern LED light bulb (lamp) Isolated on white ECO energy concept,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版商业图片、艺术插画、矢量、视频、音乐素材、字体等,已先后为阿里巴巴、京东、亚马逊、小米、联想、奥美、盛世长城、百度、360、招商银
aLight is a kind of energy that can travel through space. Light from the sun or a light bulb looks white, but it is really a mixture of many colors. The colors in white light are red, orange, yellow, green, blue and violet.You can see these colors when you look at a rainbow in ...
White, in physics, light seen by the human eye when all wavelengths of the visible spectrum combine. Unlike the colors of the spectrum, white lacks hue, so it is considered an achromatic color. Pigments for white come from lead, lime, titanium dioxide, z