光被色散成各种波长的单色光.The light is dispersed into its component wave lengths.中性原子间的范德华力叫做色散力.Van der Wals forces between neutral atoms are called dispersion forces.金刚石的光辉异彩,部分是由于它有强烈的色散.The brilliance of diamond is due in part t...
Objective To investigate the effect and safety of desloratadine for the treatment of chronic idiopathetic urticaria ( CIU ).目的 观察地洛他定治疗慢性特 发性 荨麻疹效果及安全性....
霍乱即将暴发。Conditions were ripe for an outbreak of cholera.连续下了几天大雨,随时有暴发山洪的危险,要做好准备.It has been raining heavily in the last few days and mountain torrents may become a danger at any moment. We must be prepared.最严重的致死性并发症是暴发...