名词
中文翻译：反向波管
同义词：
['inverted wave tube', 'backward wave oscillator']
例句：
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1. Theinverted wave tube is used toamplify radio signals.
反向波管用于放大无线电信号。
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2. Backward wave tubesare commonly used in radar systems.
反向波管在雷达系统中常被使用。
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3. Theengineers were able to design a newback-wave tube that could withstandhigher temperatures.
工程师们能够设计出一种新型的反向波管，能够在更高的温度下正常工作。