提出一种新颖的双降压式交流斩波器.A novel bi - directional dual Buck AC chopper is presented in this paper.斩波器,将光依次切换到参比光路和样品光路, 四扇区设计可以提供样品测试和参比测试中分别测试暗电流, 增加准确性.Switches between sample and reference beam. Four - segment design provides...
你这个上当受骗的傻瓜！You poor deluded fool!她受骗买了条一文不值的项链。She had been hoodwinked into buying a worthless necklace.一想到受骗了他们就义愤填膺.They were full of righteous indignation at the thought of being cheated....