MEI Shi - long , 1991 . Middle and Late Cambrian conodont and trilobite biostratigraphy in Wanxian, Hebei . Unpublished Ph. D thesis of Peking University.武桂春, 2003. 鲁西地区晚寒武世牙形石. 北京大学博士研究生学位论文....
那时候，牙科学刚起步，拔牙都不打麻药。In those days, dentistry was basic. Extractions were carried out without anaesthetic.他用过麻药,现在仍眩晕无力.He's still groggy from the anaesthetic.局麻药溶液中加入肾上腺素,使血管收缩.The addition of epinephrine to local an...
电影还利用了新闻片片段和街头采访的表现手法。The film also made use of newsreel footage and vox pop.她想起的那些支离破碎的片段连不上。The fragments of memory she dredges up do not fit together.只有开场片段能称得上是真正的创新。Only the opening sequence could claim to be genuin...
他轻松战胜了星期六击败厄尼·埃尔斯的加西亚。He easily overcame Garcia, Saturday's conqueror of Ernie Els.她多给他加了一勺浓缩奶油。She gave him an extra scoop of clotted cream.由此，他不去见希尔德加德便是顺理成章的事了。From that it followed logically that he would not be...
脉冲通常以微秒计。The pulse is usually timed in micro-seconds.1毫微秒等于一秒的十万万分之一.One nanosecond is equal to one - thousandth of one - millionth of one second.动态应力强度因子的变化发现滞后于应力脉冲冲击几微秒.The dynamic SIF variation was found to lag behin...