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    题名 作者 年代 出处 被引量
1Preparation of long-branched polyethylene by in situ poly-merization using late transition metal and metallocene catalysts显示文摘An in situ polymerization method was investigated to prepare long-branched polyethylene (LBPE) with ethylene alone and a single cocatalyst, methylalumoxane (MAO), by using a dual functional catalytic system containing late transition metal oligomerization catalyst and metal-locene copolymerization catalyst. The obtained long-branched polyethylene has the characteristics of low melting point, high activity and well-dispersed sequence distribution.LIU Zhongyang GUO Cunyue MAZhi WANG Jun XU Demin HE Dawei HU Youliang 2001Chinese Science Bulletin2001,46,24:5
2显示文摘LvHuizhao(吕会朝) ZhangChengpan(张成潘) HuangJin(黄晋) ZhaoQiaoling(赵巧玲) MaZhi(马志) XiaoJichang(肖吉昌) 化学学报0,,:1
3Innovative Methods of Strengthening the Construction Quality of Mechanical and Electrical Engineering显示文摘With the rapid development of the construction industry,more and more high demands are put on the important modern mechanical and electrical engineering.Many aspects of the mechanical and electrical engineering construction have an impact on the quality of the building.This paper analyzes the principles and methods of construction quality control of electromechanical engineering.In view of the influencing factors of electromechanical construction quality,an innovative method is proposed for reference.Xianghui Zhang Weiming Ji Yan Qi Liguang Li Mazhi Shi 2018Smart Construction Research2018,2,1:0
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