Amplifier machine with a two-stage strengthening

• 1. 废乳化液两级物化破乳分离-强化生物处理的一体化装置 [P] . 中国专利： CN215799037U . 2022-02-11
• 2. 一种采用两级垂直潜流式人工湿地强化处理含PPCPs废水的方法 [P] . 中国专利： CN111718005B . 2021.10.12
• 3. Two-stage transistor amplifier having variable within wide ranges strengthening [P] . 德国专利： DE1237625B . 1967-03-30

  机译： 在宽范围内可变的两级晶体管放大器

• 4. Dc machine with inversion field coils, in particular two-stage amplifier machine, it is no cascade circuit [P] . 德国专利： DE1013769B . 1957-08-14

  机译： 带有反向励磁线圈的直流电机，特别是两级放大器电机，它没有级联电路

• 5. apparatus for two-stage pressure amplifier, particularly for machine tools [P] . IT1074340B . 1985-04-20

  机译： 两级压力放大器的设备，特别是用于机床的设备

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• 7. Machine-Learning Assisted Optimisation of Free-Parameters of a Dual-Input Power Amplifier for Wideband Applications [O] . Teng Wang, Wantao Li, Roberto Quaglia, 2021
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• 1. High-Performance CMOS Current Mirrors: Application to Linear Voltage-to-Current Converter Used for Two-Stage Operational Amplifier [J] . Radwene Laajimi ,Mohamed Masmoudi . 电路与系统（英文） . 2012,第4期
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