• 2021-04-14 问题

    This is the basis of a laser oscillator(激光振荡器), or laser as it is more simply known.

    This is the basis of a laser oscillator(激光振荡器), or laser as it is more simply known.

  • 2021-04-14 问题

    ______ all other oscillator transfer techniques, the phase-locked mode cannot be used for pulsed inputs.

    ______ all other oscillator transfer techniques, the phase-locked mode cannot be used for pulsed inputs.

  • 2021-04-14 问题

    中国大学MOOC: to all other oscillator transfer techniques(和其它所有振荡器转换技术一样), the phase-locked mode cannot be used for pulsed inputs.

    中国大学MOOC: to all other oscillator transfer techniques(和其它所有振荡器转换技术一样), the phase-locked mode cannot be used for pulsed inputs.

  • 2022-06-26 问题

    西勒振荡器(Seiler Oscillator)的主要优点是 ( )。 A: 容易起振 B: 振幅稳定 C: 频率稳定度较高 D: 减小谐波分量

    西勒振荡器(Seiler Oscillator)的主要优点是 ( )。 A: 容易起振 B: 振幅稳定 C: 频率稳定度较高 D: 减小谐波分量

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