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automatic beacon造句

"automatic beacon"是什么意思   

例句與造句

  1. It is still a working lighthouse, America's oldest, with an automatic beacon.
  2. The automatic beacon was replaced in 1975 by an automatic lighthouse facility.
  3. A keeper and two assistants were assigned to live there until the United States Lighthouse Service installed an automatic beacon in 1929.
  4. But the Alaskan Rose received no mayday signal before the automatic beacon on the Arctic Rose activated along with hydrostatic life rafts five hours later.
  5. In 1967, an automatic beacon flashing white was installed making the lighthouse keeper unnecessary, and all permanent human habitation on the island ceased after this event.
  6. It's difficult to find automatic beacon in a sentence. 用automatic beacon造句挺難的
  7. The navigation aid was originally established as an automatic beacon which was first lit in late 1950, was established after a lengthy period of lobbying of the Australian government.
  8. Thirty-six seconds later, a controller called Flight 587 and told the pilots the tower was not receiving signals from the plane's transponder, an automatic beacon that allows the plane to be tracked.
  9. In the UK, by 1959 the first automatic beacon for liferafts had been produced by Ultra Electronics, and at the same time Burndept produced the TALBE ( Talk and Listen Beacon Equipment )-VHF, and SARBE-Search-And-Rescue-Beacon Equipment ( UHF ) range of beacons which were used by the Fleet Air Arm and later, Royal Air Force.

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