If you've got a valid disc but the wrong edition key you can still use the disc to install the right edition for the key you have.

如果你有张有效光盘但是版本激活码错误的话，你仍然能以这个激活码用这张碟安装上正确的版本。

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This article discusses the key technology of improving compact disc information from three aspects: storage density, data transmission rate and superhigh density storage.

本文从光盘的存储密度、数据传输率和超高密度存储三个方面讨论了提高光盘信息存储的关键技术。

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A practical and effective ultrasonic inspection method for detecting internal flaw of brake disc is put forward and the key procedure is to select a proper probe.

提出运用超声检测的方法检测制动盘内部缺陷是切实可行的，而选择合适探头是超声检测成功的关键。

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Taub is also thinking about putting readers on key fobs, USB drives and PDAs, and dots on brochures, ads, security passes and compact disc cases (for samples of music).

FORBES: Dot's A Lot