他们是那些最不适于作瓣膜切开术的患者.They are patients in whom the valvulotomy was least adequate.因此病人被送到手术室立即作胸廓切开术.The patient was therefore transferred to theatre for immediate thoracotomy.他们以小型颅骨切开术在硬膜外放置硬膜外电极.His group placed electro...
Pragmatically, MTV's survival depends on selling the youth market to advertisers.从务实角度来说,音乐电视网的生存依赖于把年轻人市场卖给广告商。Haley is the youngest actor to win an MTV individual award.海利还是最年轻的MTV电影奖得主.Video Production: including...
The yields of other cyclic acetals were between 62.并在此条件下合成了多种环缩醛,收率62.Eight acetals ( Ketals ) were synthesized under the optimal conditions.在最佳条件下,合成了八个缩醛 ( 酮 ) 化合物.The hydroxyl groups can be changed into esters , ethe...