The best way to represent the isotactic structure is with molecular models.表示等规结构的最好方法是用分子模型.Polyacetaldehyde may exist in atactic, syndiotactic and isotactic forms.聚乙醛可以以无规, 间同和全同形式存在.Polyacetadehyde may exist in atacti...
The carpet of pine needles was soft underfoot.脚下厚厚的松针踩上去软绵绵的。Sticking small needles into the hammer's felt creates mellowing.在琴槌的毛毡上粘上小针以使音色圆润.The needles that indicate your height are at the top right-hand corner.显...
我向下滚动文档搜索“美利坚合众国”。I scrolled down to find "United States of America".美利坚合众国the United States of America美利坚合众国常被缩略为U. S. A..The United States of America is commonly abbreviated to U.S.A.....
Frank was there and he is a perfect peach.弗兰克在那儿，他是个非常可爱的人。The monkey made a long arm for the peach.猴子伸臂去摘桃子.The flesh of the peach was sweet and juicy.桃子的果肉甜而多汁....
可能几乎令人难以相信的是,并不是所有的恐龙都是食肉类的, 或吃肉的.It may seem unbelievable that not all dinosaurs were carnivorous, or meat eating.原因不明的消瘦 、 无力, 上腹无规则的疼痛, 食欲下降, 特别厌食肉类食品.Unexplained weight loss, weakness, abdominal pain without rules, l...