DVD optical disc storage technology had already been invented.
DVD光盘存储技术早已问世了。
The advantages of optical disc technology are high storage capacity, very rapid access, long standing and very wide application.
光盘存贮技术的优点是密度高，容量大，存取快，保存长。
The advantages of optical disc technology are high storage capacity, very rapid access, long standing and very wide application.
光盘存贮技术的优点是密度高，容量大，存取快，保存长。
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