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.
“读取”信息的激光首先解释顶部光盘上的数据，然后改变角度翻译第二张光盘上的数据。
The laser that "reads" the information first interprets the data on the top disc and then changes Angle to translate the data on the second one.
一种光盘装置，通过将来自拾取器的激光束照射在光盘上记录信息。
An optical disk apparatus records information by irradiating a laser beam from a pickup onto an optical disk.
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