lamp black

基本解释

Who can know that your eyelids have not been touched with lamp-black?For your eyes are darker than rain-clouds.
谁会知道你的眼睑上没有画眼影？因为你的眼睛比墨云还黑。
Lamp-black: A type of pigment for black ink. It is prepared by the incomplete combustion of materials such as vegetable oils or petroleum under insufficient air.
灯黑：制黑墨所用颜料之一。是在空气不足情况下使植物或石油等物料燃烧所得。
The products of dissociation are carbon, in the form of lamp-black, and hydrogen. Considerable amounts of heat are generated by dissociation, which may produce explosions of great violence.
分解产物是灯黑子形式的碳和氢。分解产生大量热，可能产生剧烈的爆炸。

So, if you use a black lamp or something and you excite something up to a higher energy level and then it relaxes back down to its lower energy state, it's going to emit a new wavelength of light, which is going to be visible to you.
如果你用一个紫外灯或别的,东西把某种分子激发到,更高的能级，然后它会掉回,到低能级，它就会释放,一个新的波长的光,这个光是可见的。
麻省理工公开课 - 化学原理课程节选

By the 17th century, the walls of the court were painted with a noisome cocktail of ox-blood, ox-gall, lamp black and a bucket of urine: soon afterwards, tennis became unfashionable and all but disappeared—to be revived as a modified, open-air sport, in the wake of the invention of the lawn-mower, by Major Wingfield in the 1870s.
ECONOMIST: History of the net

a finely divided form of almost pure carbon produced by the incomplete combustion of organic compounds, such as natural gas, used in making carbon electrodes and dynamo brushes and as a pigment