·2,447,543篇论文数据,部分数据来源于NoteExpress
任何一个有几美元零花钱的人都买得起激光笔,每台CD、DVD或蓝光播放器都是用激光读取光盘上的数位编码(不言而喻,老式光盘播放器也是如此)。
Anyone with a few dollars to spare can get themselves a laser pointer, and every CD, DVD or Blu-ray player USES a laser to read the bits encoded on discs.
youdao
应用推荐
模块上移
模块下移
不移动