📁 光学的
This category pertains to the Computer hardware peripheral known as CD-ROMs and DVDs. It contains information not only about the drives, but also about the media used inside and about software used to read and/or write information on the media. Choose ONE of the subcategories your site best fits. Your site cannot be listed in more than one.
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条目 (6+)
Naval Oceanography Portal - Correct Time and Moon Phase
https://www.usno.navy.mil/USNO/time/moon-phase-images/