内射后入蘑菇视频ONLYYOU,97色伦图片,亚洲精品午夜精品,无码人妻精品一区二区蜜桃色欲

What is the motherboard power charger, the motherboard power charger is divided according to the design circuit operating frequency, can be divided into power frequency machine and high frequency machine, the power frequency machine is designed by the traditional analog circuit principle, the machine internal power device (such as transformer , inductance, capacitors, etc.) are large, generally there is less noise when the load is larger, but the model has strong resistance to resistance in harsh grid environment conditions, reliability and stability are higher than high frequency machine Strong.