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ringdown |
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ringdown [′riŋ‚dau̇n] (communications) In telephone switching, that method of signaling an operator in which telephone ringing current is sent over the line to operate a drop or a self-locking relay and lamp. 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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The researchers recently modified the technique of cavity ringdown spectroscopy to allow sensitive ultraviolet optical-activity measurements. Covering all aspects of infrared, near-infrared and Raman spectroscopy the five volumes also include coverage of associated techniques, such as inelastic neutron scattering, electron energy loss and cavity ringdown spectroscopy. PAETEC's TRADETEC global services include Automatic Ringdown Private Lines (ARD), Manual Ringdown Private Lines (MRD), and Hoot & Holler circuits. |
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