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英语翻译1.a shift of the range of frequencies in a signal is acc

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英语翻译
1.a shift of the range of frequencies in a signal is accomplished by using modulation which is defined as the process by which some characteristic of carrier is varied in accordance with a modulating wave.2.radars cannot resolve detail as well as the eye.nor is it yet capable of recognizing the "color" of the objects to the degree of sophistication of which the eye in capable.
简转移的频率范围的信号是通过使用调制它的定义是进程的一些特点,不同的承运人按照调制波. 2.radars不能解决细节以及eye.nor是尚未能认识到“颜色”的物体的程度复杂的眼能力.