Yahoo奇摩字典 網頁搜尋

登入
  1. 更多

  1. Oxford American Dictionary

    echo sounder

    • IPA[ˈekō ˌsoundər]

    美式

    • n.
      a device for determining the depth of the seabed or detecting objects in water by measuring the time taken for sound echoes to return to the listener.

    • noun: echo sounder, plural noun: echo sounders

    • 更多解釋

    echo sounder

    英式

    • n.
      a device for determining the depth of the seabed or detecting objects in water by measuring the ...

    Oxford Dictionary