“compact disk”的概念、定义、习题解题方法及翻译-物理辞典

单词	compact disk
释义	compact disk(CD) A 120 mm metal disk on which there is a digital recording of audio information, providing high-quality recording and reproduction of music, speech, etc. The recording is protected by a layer of clear plastic. The information is permanently encoded in the form of a spiral track of minute pits impressed on one surface of the disk at the time of manufacture; these impressions correspond to a changing sequence of bits. The CD is rotated at constant linear velocity (CLV) in a CD player; the rotation rate is varied according to the radius of the track accessed. Information is retrieved from the rotating disk by means of a low-power laser focused on the track and modulated by the binary code impressed on the track
随便看	cross section crucible cryogenic pump cryogenics cryohydrate cryometer cryoscopic constant cryostat cryotron crystal crystal counter crystal defect crystal habit crystal lattice crystal microphone crystal oscillator crystal pick-up crystal structure crystal system crystallography crystalloids CT scanner cubic crystal cubic equation cubic expansivity

物理辞典收录了3346条物理词条，基本涵盖了常用物理知识及物理英语单词词组的翻译及用法，是物理学习的有利工具。