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local-area underwater navigation system |
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local-area underwater navigation system [′lō·kəl ¦er·ē·ə ¦ən·dər¦wȯd·ər ‚nav·ə′gā·shən ‚sis·təm] (navigation) A system applied chiefly in the inspection and maintenance of offshore structures, in which time differences between the reception of acoustic signals from a chain of transmitters are used to determine the positions of divers and of crewed and uncrewed underwater vehicles. Abbreviated LAUNS. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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