The extraction mechanism of palladium in chloride system by di ( 1 - methyl heptyl ) acetamide ( N _ ( 503 )) has been studied.本文研究了N, N二 甲庚基乙酰胺 ( N_ ( s03 ) )从氯化物体系中萃取钯的机理....
Signor Vitelli held up a hand.维太里先生举起一只手.This somehow leads to Italy, and to Signor Mussolini.不知不觉间,这场谈话引出了意大利, 引出了默索里尼先生.Signor Fratelli , the present champion, has won it every year since 1991.目前的冠军弗拉特里先生, 自1991年以来,年年获...
Send us a demo with one or two of your best songs.把你最好的一两首歌的小样寄给我们。He listened to one of my demo tapes.他听了我的一盘录音样带。DEMO also achieving the Billboard, motion blur, function.同时DEMO还实现了Billboard, 运动模糊, 的功能....
Through nitrosation , hydrogenate reducion, and acylate three steps, the yield surpass 80 % for the diethyl malonate.收率相对于丙二酸二乙酯达到了80%以上.The necessary material of 2 - ( 2 - methoethyl ) acetaldehyde diethyl acetal was sy...
I believe he is most painfully anxious about Diana.我相信他肯定非常担心黛安娜。I am painfully aware that staff have a heavy work schedule.我非常清楚员工们工作繁重。The divorce was painfully public, feeding her dislike of the press.离婚的事张扬出去,她十分痛苦,更...