High voltage switch power supply supplies the high voltage for the electron gun, changing the density and brightness of ejected electrons. 高壓電源給電子槍提供高壓，改變發(fā)射出電子的密度以及亮度。
While technology companies are offering solutions that will consume less power, users can increase the battery life of laptops by lowering the brightness of the computer screens. 同時(shí)技術(shù)公司將會(huì )提供解決能源的方案，使用者可以通過(guò)降低電腦屏幕的亮度延長(cháng)電池的壽命。
Some animals have the power to see in the dark. 有些動(dòng)物具有在黑暗中能看見(jiàn)東西的本領(lǐng)。
There was something sinister about the power of that man. 這個(gè)人的本領(lǐng)可真有點(diǎn)令人發(fā)瘳。
