D. c. ammeter calibrator utilizing feedback control and regulation of calibrating current

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  机译： 利用d的两级直接耦合晶体管放大器。 C。积极的反馈和d。 c.-a C。负面反馈

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  机译： 电流调节器C。 d。 C。反馈

• 5. Silicon controlled rectifier d. c. to a. c. inverter utilizing bridge type arrangement with single commutating capacitor [P] . 美国专利： US3109977A . 1963-11-05

  机译： 可控硅d。 C。到C。采用单整流电容器的桥式布置的逆变器

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