forward echo

短语

词形变化

forward echoes 复数 forward echoes

释义与例句

n.
  1. 1.

    Synonym of pre-echo.

    可数 不可数 计算机 工程 数学
  2. 2.

    The propagation of a signal reflection in the same direction as the original signal and consisting of energy reflected back by one discontinuity and then forward again by another discontinuity.

    可数 不可数 媒体 工程