Penicillin was an extremely significant medical discovery.青霉素是极其重要的医学发现.The laxity of export control authorities has made a significant contribution to the problem.出口控制部门工作懈怠，是造成此问题的重要原因。There were no significant differe...
The rooms have a baronial feel, with oak paneling and leather sofas.橡木制镶板和皮沙发使房间看起来既豪华气派又古色古香。...the baronial feuding of the Middle Ages.中世纪贵族领主间的世仇The baronial class had now a fresh generation of leaders.当时,贵族阶级已经有了一位新兴...
This is further supported by experiments with the iron chelator desferrioxamine.对铁螯合剂去铁胺的研究也证实了这一观点.Conclusion Desferrioxamine and ferric chloride don't alter the total amounts of IRP 2 mRNA in HL - 60 cells.结论铁或去铁胺...