bottom echo

См. также в других словарях:

• Echo Park (Colorado) — is a remote river bottom surrounded by canyon walls on the Green River in Dinosaur National Monument. It was first mapped and given its name by the Powell Geographic Expedition in 1869. A proposed dam at Echo Park turned into a nationwide… …   Wikipedia

• echo sounding — n. the determining of depth of water by means of a device (echo sounder) that measures the time required for a sound wave to be reflected from the bottom: a similar process (echo ranging) is used to measure the distance to an underwater object *… …   Universalium

• echo sounding — n. the determining of depth of water by means of a device (echo sounder) that measures the time required for a sound wave to be reflected from the bottom: a similar process (echo ranging) is used to measure the distance to an underwater object …   English World dictionary

• Echo class survey ship (2002) — The two ships of Echo class are the latest vessels to join the Royal Navy s Hydrographic Squadron. Given the names Echo and Enterprise , each ship displaces approximately 3,500 tonnes, and is equipped with a state of the art suite of equipment,… …   Wikipedia

• Echo (phenomenon) — In audio signal processing and acoustics, an echo (plural echoes) is a reflection of sound, arriving at the listener some time after the direct sound. Typical examples are the echo produced by the bottom of a well, by a building, or by the walls… …   Wikipedia

• Echo sounding — pulses directed from the surface or from a submarine vertically down to measure the distance to the bottom by means of sound waves. HistoryAfter the disaster of the Titanic in 1912, the German physicist Alexander Behm conducted some research to… …   Wikipedia

• echo bubble — n. A sharp but temporary rise in stock prices that follows the collapse of a recent stock market bubble. Example Citations: Given where tech stocks are at the moment wheezing at a red light after a 17 month romp where will they go from here? Will …   New words

• echo sounding — noun determining the location of something by measuring the time it takes for an echo to return from it • Syn: ↑echolocation • Hypernyms: ↑localization, ↑localisation, ↑location, ↑locating, ↑fix * * * noun …   Useful english dictionary

• echo-sounding — echˈo sounding noun A method of measuring the depth of water, locating shoals of fish, etc, by noting the time taken for an echo to return from the bottom, the shoal, etc • • • Main Entry: ↑echo …   Useful english dictionary

• echo sounder — a sonar device that sends a signal to the bottom of a body of water and back. Used to detect fish schools and to map the bottom as an image is displayed on a screen. Used in angling, it is also called a fish finder …   Dictionary of ichthyology

• Glen Echo Park, Maryland — Infobox protected area | name = Glen Echo Park iucn category = V caption = locator x = 240 locator y = 80 location = Maryland, USA nearest city = Washington D.C. lat degrees = lat minutes = lat seconds = lat direction = long degrees = long… …   Wikipedia