克莱尔和戴维·阿斯特正在画远处西班牙山峦的风景素描。Clare and David Astor are sketching a view of far Spanish hills.布赖恩·麦克莱尔头球攻入了自己本赛季第23粒进球。Brian McClair nodded in his twenty-third goal of the season.他在加利福尼亚州的克莱尔蒙特男子学院主修金融专业。He majored in financ...
聚羟基乙酸的经典制备方法主要有两种:直接缩合聚合法和乙交酯开环聚合法.There are two means available for the preparation of PGA - synthesis polymerization and ring - opening polymerization....
They were comparing notes on each other's progress towards solving that most taxing of all puzzles: the riddle of the human genome.他们就解决人类所面临的最大难题，即人类基因组之谜的进展情况交换了意见。Genome - based Celera Genomics, the private compa...
The requirements of cooperative and centralized systems make the acceptance of standards of vital importance.对合作化和集中化系统的要求使接受标准化变得非常重要.The centralized management of ambulant clinic laboratory sheets is a necessary work f...