This study presents a new single - stage single - switch PFC flyback DC converter.文章研究了一种新型 单级 单开关PFC反激变换器.A novel multi - output forward - flyback converter with secondary side post regulation is proposed.详细分析了一种运用了后级调整...
The old man combed his snowy hair.老头儿梳他的白发。He keeps up his long - distance running whether it's windy or snowy.刮风也罢,下雪也罢,他都坚持 长跑.We can make a snowman on a snowy day.在下雪天,我们可以堆雪人.Do you think your car will stand up ...