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....
她经过图书室门口时，电话响了。As she passed the library door, the telephone began to ring.他们从图书室里淘汰无用的书.They weeded out useless books from library.在聚会期间,图书室里总放着一托盘的兑了水的烈性酒.During the party there was always a grog tray in the library....
威廉姆斯知道她已经失掉了夺取胜利的机会。Williams knew that she had missed her chance of victory.这场胜利的喜悦退去后，人们将不得不回归现实。Once the euphoria surrounding this victory subsides, reality must return.他们打着象征胜利的V字形手势。They were waving V-signs for victo...