METHODS: The target compound was synthesized from N - benzyl protected aminoacetophenone through hydrogenation, benzoylation and reduction.方法: 以氮 - 苄基保护胺基酮为原料,经氢化, 苯甲酰化,还原三步合成双苯甲酰沙丁胺醇酯....
Using EDTA dispart ray luminosity method test cupreous in gold - cupreous - cadmium liquid.采用EDTA分光光度法测定金 - 铜 - 镉镀液中的铜.Astronomers tacitly assume that stars of the same luminosity and color all have the same mass.天文学家心照不...
They succeed in differentiating the most commodity - like products.在最通用的日用产品方面,它们也能独树一帜标新立异.The simplest and most effective method of differentiating areas is to use different colours.区别面状要素最简单而又行之有效的办法,是使用不同的颜色.In diffe...
我忽然看见隐约地闪现着的亮光.Suddenly my eyes caught the glint of a light.他似乎隐约地感觉到自己的死期已到.It appeared that he dimly perceived his time to go had come.他隐约地暗示他可能迟来.He hinted vaguely that he might be late....