两幅照片是搭接在一起的.The two pictures are made to lap over each other.最常用的连接结构是搭接, 嵌接和平接.The most commonly used joint configurations are the lap , scarf, and butt joints.介绍一种基于网络的平面连杆机构搭接虚拟实验的方法.A method of network virtual experi...
Frank Deford is a special correspondent for Newsweek magazine.弗兰克·德福特是《新闻周刊》杂志的特派记者。Our economics correspondent, James Morgan, is just back from Germany.我们的财经记者詹姆斯·摩根刚刚从德国回来。From Nairobi here's our East Africa corre...
Application of samarium diiodide in mediating intramolecular cyclization reactions was reviewed.综述了二碘化钐在分子内环化反应中的应用.Sodium ethylate was used as catalyst in Baker - Venkataraman of cyclization, and all factors were studie...