He has also dared to take unpopular, but principled stands at times.他有时也会大胆坚持不受欢迎、但却有原则性的立场。You have to take a principled stand.你得讲原则。to take a principled stand against abortion采取反堕胎的原则性立场...
白内障是一种影响晶状体透明性的疾病。Cataracts is a condition that affects the transparency of the lenses.硷金属卤化物能生长成具有优良透明性的大晶体.The alkali halides can be grown into large crystals of excellent transparency.仍然, 由于它所有的困难, 透明性通常比选择性更好.Still, ...
共混是两种或两种以上高聚物的混合物.Blend is a mixture of two or more polymers.聚合物化学工作者所称的 “ 多组分体系 ” 是指聚合物共混体, 共聚物和增强复合材料.By " multicomponent systems " polymer chemists mean polymer blends, copolymers and reinforced composites.淙述了近几年国内外关于...
Dr Dunn was apparently trying to get away when he was shot.很显然，邓恩博士在遭枪击时正企图逃跑。Robert Dunn is a professor of economics at George Washington University.罗伯特·达恩是乔治·华盛顿大学经济学的教师。Mr Dunn's pleas of poverty are only partly ...