radar
名词
UK/ˈreɪ.dɑːʳ/
US/ˈreɪ.dɑːr/
定义 radar 名词
- Uncountable(不可數名詞)
A system employing radio waves to detect the position of objects that are not visible to the naked eye.
雷達
Weather radar can help us predict the movement of storms.
氣象雷達可以幫助我們預測風暴的移動。
Air traffic controllers use radar to track aircraft.
空中交通管制員使用雷達來追蹤飛機。
Military radar is used to detect enemy aircraft and missiles.
軍事雷達用於偵測敵機和導彈。
成语
- beneath the/someone's radar
To be unnoticed or ignored, often because of being inconspicuous or deemed unimportant.
未受注意，未被察覺
• Despite their innovative ideas, these proposals remained beneath the radar of the management.
儘管這些提案具有創新性，但它們仍然未被管理層注意到。