论述了以相转移催化剂催化合成邻硝基茴香醚的新方法.The process of synthesizing o - nitroanisole by using phase - transfer catalyst was described.丁化羟基茴香醚: 一种白色蜡状的苯酚抗氧化剂, CHO, 用于保存脂肪和油, 尤指在食物中.BHa: a white, waxy phenolic antioxidant, CHO, used to p...
两个人正试图割掉疯长的草。Two men were attempting to scythe the long grass.是要远离那钢筋水泥,逐日疯长的土地?Far from the sprawl of concrete that keeps crawling its way about 1,000 miles a day?...
His reception there shortened the odds that he might be the next Tory leader.他在那里得到的反应使他更有望成为英国保守党下一任领导人。In 1976, Stephen A. Ross innovated CAPM and set up Arbitrage Pricing Theory ( shortened for APT ).1976年, StephenA. ...
There is a great deal of demand in modern electronics, however, for bandpass amplifiers.然而近代电子学对调谐的频率范围很宽的带通放大器提出很多要求.This paper presents a set of all - pole bandpass filter with equal inductances.本文提出一种间隙电容耦合的微带圆盘腔带通滤波器...
" There's a girl in there too ,'said Xing . " Tie hex up also.“ 里边还有个女的, 也捆起来!A hex is believed to be an evil spell that is put on someone.背运据说是指被人用咒语镇住了.Now, new models use nice, shiny chrome, hex - head screw...