采用1,4- 丁二醇 、 马来酸酐及十八醇为主要原料,合成出一种双子表面活性剂1, 4- 丁二醇双琥珀酸十八醇双酯磺酸钠.A new type gemini surfactant was synthesized from 1,4 - butanediol , maleic anhydride and 1 - octadecanol.研究了加入聚对苯二甲酸丁二醇酯(PBT) 对酚醛塑料的增韧改性.A phenolic resin was ...
There are many kinds of hoes.锄头有很多种.The farmers counted their rakes and hoes and plows.农民清点耙,锄和犁.I saw Xiao Yang walking by , shouldering two hoes.我看到小扬扛着两把锄头从旁走过.Every day, he hoes her small flower garden.他每天都在小花园里锄地....
I've spent a lot of time walking around Britain from the far north of Scotland down to Cornwall...我花了很长时间在英国徒步漫游，从苏格兰的最北端一直走到康沃尔。Britain's health experts are pushing for a ban on all cigarette advertising...英国的...
Knowing her father's opposition to the young man, Nina decided to run away with him.知道父亲反对那个年轻人, 尼娜决定和他私奔。He said he'd ask Nina for a divorce, but he never did anything about it.他说会跟尼娜提出离婚，可是他却从未付诸实际。At CTU, Ja...
Darn it! I’ve lost my keys!真见鬼，我的钥匙丟了！He sprang to his feet, grabbing his keys off the coffee table...他一跃而起，从茶几上一把抓起自己的钥匙。According to the standard of 3 GPP, WLAN users authenticate and distribute keys through EAP - AKA ...
I think they're just bumming around at the moment, not doing a lot.我想他们目前只是在四处闲逛，没做多少事。He was probably bumming his way home.“他多半是不花钱搭车回家.I’ve been bumming around for the last year without a job.我已经闲荡了一年,一直没有活干。He ha...
Duncan Campbell is nationally known for his investigative work.邓肯·坎贝尔因其调查工作闻名全国。We rang Duncan to ask where he was going on holiday.我们打电话给邓肯，问他要去哪里度假。Jim lives further down the road than Duncan.吉姆比邓肯住在这条街更远的地方....