greyline

别名

grayline

释义与例句

n.
  1. 1.

    Synonym of twilight zone (“terminator”).

    不可数
  2. 2.

    A transition line, coinciding with a twilight zone (terminator), where a change in the propagation of radio waves is observed.

    不可数 工程

词源

From grey + line.

来源：wiktionary