sonar buoy การใช้

• Two sonar buoys were dropped from rescue planes by Bullimore's boat Wednesday.
• A sonar buoy had been dropped next to Bullimore's yacht from a rescue plane.
• She laid sonar buoy moorings to protect against Manila Harbor.
• Two sonar buoys, pickup 9th graf pvs
• The sonar buoy was dropped next to the yacht from a rescue plane, the Royal Australian Air Force said.
• The sonar buoy was later dropped near the boat and detected no signs of life, the air force said.
• The aircraft are equipped with Mark 46 or MU90 Impact torpedoes, mines, and a range of sonar buoys and other stores.
• In World War II, Arthur Berry was an underwater defense specialist, planting nets and sonar buoys to protect Navy battle ships.
• A Pentagon official said the Kitty Hawk dropped a sonar buoy when it could not identify the submarine on its radar screen.
• The ship began laying the sonar buoys on 5 November 1944, and guarded them until 17 January 1945, providing protection to ships anchored off Leyte.
• At the harbor museum, a microphone attached to a sonar buoy out in the ocean relays the eerie sounds of the whales calling to each other.
• A sonar buoy detected no signs of life in an overturned yacht Wednesday, adding to fears that its British skipper had been swept into the icy seas off Antarctica.
• But by the time the submarine hunters had flown the 1, 600-mile distance _ and peppered the ice-flecked waves with sonar buoys _ the quarry had vanished to the deep.
• That evening, a sound contact was made by " Snowden ", but she was ordered out of the area so that aircraft from could drop sonar buoys, which produced negative results.
• A sonar buoy detected faint tapping noises inside the hull early Thursday, but anxious rescuers were unsure whether the sounds were made by Bullimore or by the movement of loose rigging.
• Scientists aboard " Gordon Gunter " used both visual and acoustic techniques to locate humpback whales and other marine mammal species and located many whales by tracking their songs with sonar buoys.
• Searchers continue to monitor the area with sonar buoys capable of picking up signals from ocean depths between 1, 000 and 2, 000 meters ( 3, 300 and 6, 600 feet ).
• For instance, researchers in San Diego are using SeaWorld's Manatee Rescue exhibit to develop a sonar buoy or platform that can detect the animals, with a light or signal on the buoy warning boaters to use caution.
• A sonar buoy detected faint tapping noises inside an overturned yacht in icy seas off Antarctica Thursday, but anxious rescuers were unsure whether the sounds were made by its solo British skipper or the movement of loose rigging.
• The carrier's antisubmarine escorts dropped sonar buoys to track the submarine, which headed for its base at Qingdao on the Shandong peninsula, and China scrambled air force jets that flew within sight of the American battlegroup as it tracked the submarine.