... microassembly 微型组件 maser amplification 脉泽放大 microcoded microprocessor 微编码微处理机 ...
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maser r amplification 脉泽放大
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Before the laser, scientists developed a similar device: a maser which stands for Microwave Amplification by Stimulated Emission of Radiation.
VOA: special.2010.09.01
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