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elementary ring structure |
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elementary ring structure [‚el·ə′men·trē ′riŋ ‚strək·chər]
(astronomy) A formation on the moon's surface consisting of a simple wall of uniform cross section enclosing a circular area which has the same elevation as the surrounding surface. Also known as simple ring. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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