色光的英文：
【化】 shade

参考例句：

Frequency modulation is not possible with polychromatic light
多色光不可能调制频率。

Broad disks of iridescent brightness swam under his lids
闪亮的彩色光团在他的眼皮底下浮游。

Complementary colour; colour of light which when combined with a given colour makes white light(eg blue with yellow)
互补色(混合后产生白色光的两种色光,如蓝和黄).

conversely, it is possible to create colours by the addition of coloured lights
与此相反，也能由彩色光相加来获得彩色。

Red giant (large star near the middle of its life that gives out a reddish light)
红巨星(发微红色光,其寿命已近中期).

Spectrum: Complete range of colours within the visible light, i.e. between the wavelength of 400 nm to 700nm.
光谱:可见光内的全部色光系列。即光波在400至700纳米之间的排列。

The bright, shiny appearance of some nylons contrasts sharply with the relatively dull surface of wool.
某引起尼龙纤维光亮的外观与羊毛纤维色光比较暗淡的表面形成了鲜明的对比。

By adding various dyes to the silver bromide, it can be made additionally sensitive to green light
溴化银加入各种化学增感剂后，可使其对绿色光尤其敏感。

shade是什么意思：
n. 荫；遮光物，灯罩；细微的差别；灵魂
v. 渐变；使阴暗；使渐变

What is the good of a sundial in the shade?
把日晷放在暗地里有何用处?

This seat is shaded by a tree.
这个座位有一棵树遮阴。

The trees afford grateful shade.
这些树提供了宜人的纳凉之所。

They ate and drank and lounged in the shade.
他们在阴凉处吃吃喝喝懒懒地闲坐着。

Look at subtle shades of brown.
看这一片淡棕色。