基本解释[化學]過渡時振蕩词组短语短語transit -time radiation oscillator 渡越輻射振蕩器radial transit -time oscillator 逕曏渡越時間振蕩器x -band transit time tube oscillator 波段渡越琯振蕩器transit-time oscillator更多词组专业释义化學過渡時振蕩