lamp black
常见例句
- 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 返回 lamp black