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梯度放大器是核磁共振成像(MRI)系统的核心设备之一，它根据前级控制系统传来的指令，向梯度线圈提供特定波形的电流脉冲。
The gradient amplifier is an essential equipment of Magnetic Resonance Imaging system (MRI). It supplies the gradient coils with pulse currents according to the signal from the control system.
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