It's similar to an ordinary record, except that it's read by a laser beam, and the information recorded on the aluminium is digital.
它以数字形式把信息记录在铝片上，并且用激光来解读，除此之外，它和普通的唱片很相似。
This invention provides an optical information recording medium (10a) that can record information by laser beam (38) irradiation.
本发明提供一种光学信息记录介质(10a)，其能够通过辐照激光束(38)记录信息。
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