The B-2 is hard to detect via infrared, acoustic, electromagnetic, visual or radar signals.

B - 2无法通过红外线、声音、电磁波、视觉上的及雷达信号跟踪侦查。

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We can apply this method to filming theodolite or radar for auto - matic tracking of the flying target.

该方法可用于地面电影经纬仪或雷达对飞行目标的自动限综。

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The sound, image, or message transmitted or received in telegraphy, telephony, radio, television, or radar.

无线电、电报、电话、传真或其它方法发送信号、报文或其它形式的消息。

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Think about the advent of hedge funds -twenty or twenty-five years ago, hedge funds were a blip on the radar screen.

想想对冲基金刚出现时,差不多20或25年前,它就像雷达屏幕上的一个小点

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They may be not on the national radar For me, in my own life, when I think of real heroes or even role models, or well-known people in the Patheon of struggle.

有哪些是你觉得人们需要了解的？,对于我来说，当我想到真正的英雄或者榜样时，或者先贤祠中的名人。

普林斯顿公开课 - 人性课程节选

Feedback (usually a laser, GPS, or RADAR) allows constant adjustment of the path in flight.

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Do such events as storms or radar outages also force such diversions?

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Then came Radio Detection and Ranging, or radar.

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