The only way I could receive HDTV was to capture a strong reflected signal.

要想接收到高画质电视，对我来说唯一的办法是找个够强的反射讯号。

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It then USES the reflected signal to interpret the location, size, and composition of an object.

然后，它使用的反射信号来解释的位置，大小和对象组成。

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The aerial which sends out the signal and receives the reflected signal is pointed straight at the aircraft.

发射出信号并接受返回信号的天线是直接指向飞机的。

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The rest of the electronics then interpret the reflected signal.

ECONOMIST: Medical technology

And since a moving object causes a tiny change (known as a Doppler shift) in the frequency of the reflected signal, Silent Sentry can also calculate how fast it is moving.

ECONOMIST: Remote sensing

Several panelists thought that the cancer signal may have reflected an ascertainment bias, and, further, that a young homozygous FH population would be less susceptible to an elevated cancer risk.

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