Discussing the Key Technique Requirements About Locale Choice of Assemble Work for Super and Heavy Product;
论超大型/重型产品装配厂选址的关键技术要求
The superperiodic structures of highly oriented pyrolytic graphite(HOPG) have been observed by scanning tunneling microscopic(STM).
用扫描隧道显微镜(STM)对高定向热解石墨(HOPG)表面的超大结构进行了研究,观察到的超大结构是2。
Recent advances achieved in novel molecular sieves,such as molecular sieves containing extra-large-micropore,mesopore and double four-memebered ring(D4R) are introduced.
对近年来新合成的分子筛材料,如超大微孔分子筛、介孔分子筛、含D4R结构单元的分子筛的孔结构及合成技术进行综述,并探讨了这些新分子筛材料在催化裂化过程中的应用前景。