relais

n. 继电器

发音

/ɹəˈleɪ/

释义与例句

n.
  1. 1.

    A narrow space between the foot of the rampart and the scarp of the ditch, serving to catch any earth that may crumble off or be washed down, and prevent its falling into the ditch.

    历史 政治 军事

词源

Borrowed from French relais. See relay (noun).

来源：wiktionary