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 sonar ['sәunɑ:]   添加此单词到默认生词本
n. 声纳

[计] 声纳

[化] 声呐




    sonar
    [ noun ]
    a measuring instrument that sends out an acoustic pulse in water and measures distances in terms of the time for the echo of the pulse to return
    <noun.artifact>
    sonar is an acronym for sound navigation rangingasdic is an acronym for antisubmarine detection investigation committee


    1. Both are, however, hedging their bets by forming cross-border alliances, GEC with Thomson of France in sonar, BAe with Matra of France in missiles.
    2. It specializes in antisubmarine warfare, especially towed sonar arrays, which are underwater listening devices towed behind Navy ships submarines and used to listen for enemy submarines.
    3. Now, GE's radar division is based in Moorestown, N.J., while its sonar and related underseas systems are built in Syracuse.
    4. They will use sonar to determine the sea bottom's characteristics; search for and count larval lobsters; scuba dive to survey lobster densities, shelter sizes and abundance of predators; and sample ocean bottom sediment for invertebrates.
    5. Separately, GE said it will cut 240 jobs and consolidate facilities at its sonar and radar manufacturing division in Syracuse, N.Y. GE employs about 5,500 workers in the Syracuse area, a majority in the sonar and radar division.
    6. Separately, GE said it will cut 240 jobs and consolidate facilities at its sonar and radar manufacturing division in Syracuse, N.Y. GE employs about 5,500 workers in the Syracuse area, a majority in the sonar and radar division.
    7. The Orion submarine's sonar located the debris, but searchers were unable to obtain a picture of the find with the sub's video camera, Anderson said.
    8. The survey team aboard the Safeguard started by probing the bottom of Kiska Harbor by sonar and marking each wreck with a buoy.
    9. It may have been swept away in a hurricane, and that's why some members of the team are experts in sonar and metal detection," he said.
    10. The new sonar survey show the second site, 33 miles from the first, was most probably the Central America.
    11. In 1971, he says, Soviet hardware such as sonar buoys "tended to be about 10 years behind U.S. hardware," he says.
    12. Fishing fleets home in on schools of fish using sonar and radar.
    13. Yet in 1957, a fisherman named Carl Lowrance, the founding father of Lowrance Electronics, saw the benefit that a small and more compact sonar unit could offer fishermen.
    14. Partnair's managing director, Syvar Leivestad, said a fishing boat picked up an underwater sonar echo that might be the wreckage, but West German navy divers sent down to check could not confirm the report due to poor visibility.
    15. During the weeklong search, a deep-sea probe equipped with sonar and a video camera will be dragged across a 24-square-mile area about 100 miles southwest of Honolulu.
    16. Thomson of France, which has a joint venture with Ferranti in sonar equipment, was unavailable for comment. Ferranti emphasised that while it was in discussions, there was no certainty of an offer being made.
    17. Recovery teams using sonar detected what appeared to be two vehicles resting on the river's bottom near the bridge.
    18. Ever since, NOAA has been collecting the map data with the sonar system but holding back its release at the Navy's insistence.
    19. Horizon explains how noise can interfere with the whales' use of sonar for hunting and finding mates (8.00).
    20. While the submarine operated well, sonar echos off unexpectedly craggy features on the bottom of the lake made precise navigation difficult and efforts are being made to correct the problem, the scientists said.
    21. "Fish locators, like all sonar, are really nothing more than an electronic transmitter, a receiver and a stop watch," he said.
    sonar
    sonar amplifier
    sonar antisubmarine d...
    sonar array
    sonar attack center
    sonar attack plotter
    sonar background noise
    sonar beacon
    sonar buoy
    sonar cable winch
    sonar calibration sta...
    sonar capsule
    sonar chart
    sonar communication
    sonar control room
    sonar control system
    sonar countermeasure
    sonar countermeasures
    sonar countermeasures...
    sonar data
    sonar data recorder
    sonar detecting-rangi...
    sonar display
    sonar dome
    sonar dome coating
    sonar dome insertion ...
    sonar dome loss pattern
    sonar dunking
    sonar early warning
    sonar echo sounder set
    sonar equipment
    sonar evaluation station
    sonar gear
    sonar hoist and trans...
    sonar hoist set
    sonar indicator system
    sonar information center
    sonar instrumentation...
    sonar interrogator set
    sonar listening set
    sonar nacelle (反潜...
    sonar navigation
    sonar noise recorder
    sonar operator
    sonar operator trainer
    sonar performance com...
    sonar pinger
    sonar pinger system
    sonar plot
    sonar projector
    sonar range
    sonar receiver
    sonar receiver-scanner
    sonar recorder
    sonar remote sensing
    sonar resolver
    sonar rubber
    sonar scanner
    sonar scanning set
    sonar school ship
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