基本解释脉泽放大英汉例句原声例句Before the laser, scientists developed a similar device: a maser which stands for Microwave Amplification by Stimulated Emission of Radiation.maser amplification更多例句词组短语短语maser r amplification 脉泽放大maser amplification更多词组专业释义电子、通信与自动控制技术脉泽放大