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automanual system |
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automanual system [¦ȯd·ō¦man· yə·wəl ′sis·təm] (civil engineering) A railroad signal system in which signals are set manually but are activated automatically to return to the danger position by a passing train. 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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