NDB

词形变化

NDBs 复数 NDBs

释义与例句

n.
  1. 1.

    Initialism of non-directional beacon, a type of radiobeacon used in air navigation which transmits an omnidirectional radio signal containing no encoded information about the direction from an aircraft to the beacon.

    航空 商务 工程
  2. 2.

    Initialism of nuclear depth bomb.

    政治 军事 航海 交通