self-feedback amplifier

进出口... ... self-feed roller paint applicator 自添油漆滚轴 self-feedback amplifier 自反馈放大器 self-feeder 自动进料器 ...

机械... ... self-feed trailer 自饲车 self-feedback amplifier 自反馈放大器; 内回授放大器 self-feedback ciucuit 自反馈电路 ...