He folded the papers and stuck them in his desk drawer.他将文件叠起来，塞进自己的书桌抽屉里。She tore off two sections of paper towel and folded them lengthwise.她撕下两格纸巾，然后纵向对折。He folded his paper neatly and sipped his coffee.他把报纸整齐地叠起来，然后抿...
Corrensite forms networks of crinkled or folded sheets.柯绿泥石呈卷曲网状或折迭片状.The pool furniture was folded, stacked, and covered with a tarpaulin.游泳池的设备都已经折叠起来, 堆在那里, 还盖上了防水布.She folded up some shirts.她把一些衬衫折叠起来。Mrs Ringrose sa...
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...