The progresses in five - membered heterocyclic metallocene analogic complexes and their application in olefin polymerization are reviewed. 综述了五元杂环类茂金属配合物的研究进展及其在烯烃聚合中的应用.
The new machine will go on line in June 2006.新机器将于2006年6月投入使用。They can order their requirements on line.他们可以在线下订单。They rate librarianship skills higher than subject knowledge in on - line searching.他们认为图书馆技术要比联机检索主题知识更难于...
长白山区瓦蛛属三新纪录种 ( 蜘蛛目: 皿蛛科: 微蛛亚科 )Three new Record Species of the Genus Walckenaeria Blackwall From Changbai Mountain Region ( Araneae: Linyphiidae: erigoninae )捕获数量最多的是直翅目和蜘蛛目, 分别达到27.91%和22.77%.What the quantities are mos...
长长的一阵紧锣密鼓声中迎来了高空秋千表演者。A long drum roll introduced the trapeze artists.啜泣声中隐隐透着愤怒。The sobbing voice had an undertone of anger.在响亮的号角声中花圈被献在纪念碑前.A wreath was laid on the monument to a fanfare of trumpets....