instrument landing system

短语

[电] 仪器导降系统

词形变化

instrument landing systems 复数 instrument landing systems abbreviation ILS 复数

别名

ILS

释义与例句

n.
  1. 1.

    A collection of radio navigation aids (always including a localizer and glideslope, and often one to three marker beacons as well) used by pilots for approach guidance to a specific airport runway, especially when visibility is limited.

    航空 商务 工程