例句與造句

1. Constrained geometry metallocene catalyst
   限定幾何構(gòu)型茂金屬催化劑
2. Homogeneous metallocene catalyst
   均相茂金屬催化劑
3. The recent advances in olefins oligomerization catalyzed by metallocene catalyst have been reviewed . emphasis is given to the catalytic reactions , cyclization and prospect of application of metallocene catalyst
   摘要本文介紹近年來(lái)國(guó)內(nèi)外在茂金屬催化劑烯烴劑聚與環(huán)化方面的研究進(jìn)展，主要側(cè)重于茂金屬催化劑烯烴劑聚， , -二烯的環(huán)化及應(yīng)用前景。
4. Abstract : the synthesis , characterization , reaction mechanism and progress in indus try of ethylene / propylene elastomer with metallocene catalysts were discussed , th e metallocene catalytic systems and the structure and properties of the elastome r were introduced emphatically
   文摘:論述了茂金屬乙丙彈性體的合成、表征、反應(yīng)機(jī)理及工業(yè)化進(jìn)程，著重介紹了茂金屬催化體系和茂金屬乙丙彈性體的結(jié)構(gòu)和性能。
5. Ethylene / octene copolymer sythesized by metallocene catalyst was a new kind of thermoplastic elastomer , which was molded as elastomer material by plastic common molding process such as injection , extrusion and blowing and also by rubber process such as chemical crosslinking by peroxide
   采用茂金屬催化劑合成的乙烯辛烯共聚物是一種新型熱塑性彈性體，可用注射、擠出、吹塑等常用加工方法成型，又可用過(guò)氧化物進(jìn)行化學(xué)交聯(lián)，用橡膠加工方法制成彈性體材料。
6. It's difficult to find metallocene catalyst in a sentence. 用metallocene catalyst造句挺難的
7. Basic properties of various polyethylene polymerized by metallocene catalysts and various branched polyethylene polymerized by oligomerization cocatalysts were researched , and the results show that metallocene branched polyethylene polymerized by oligomerization cocatalysts have high molecular weight , broad molecular weight distribution , and good tensile properties compared to metallocene - based polyethylenes prepared using mono - metallocene and bi - metallocene catalysts
   摘要研究了不同茂金屬催化劑聚合的茂金屬聚乙烯及不同齊聚共聚催化劑聚合的茂金屬支化聚乙烯的基本性能，結(jié)果表明：以齊聚共聚催化劑體系的茂金屬支化聚乙烯比以單、雙茂金屬催化劑的茂金屬聚乙烯相對(duì)分子質(zhì)量高、相對(duì)分子質(zhì)量分布寬，拉伸性能優(yōu)良。
8. Preparation of polymer composites is one of the important methods to realize high performance of polymer materials . in this paper , a newly developed ethylene - octene copolymer ( eoc ) , catalyzed by metallocene catalysts , was used as an impact modifier for pp instead of traditional modifier ( epdm ) . the relationship between the structure and properties of polypropylene composites toughened and reinforced by eoc and cacos respectively or together was studied systematically
   聚合物復(fù)合材料的制備是實(shí)現(xiàn)高性能聚合物材料的重要途徑之一，本論文采用茂金屬催化劑合成的新型聚烯烴彈性體乙烯-辛烯共聚物( eoc )代替?zhèn)鹘y(tǒng)的三元乙丙橡膠，對(duì)eoc和caco _ 3兩種增韌劑分別和協(xié)同增韌增強(qiáng)聚丙烯復(fù)合材料體系的形態(tài)結(jié)構(gòu)與性能的關(guān)系進(jìn)行了系統(tǒng)的研究，圍繞高性能、應(yīng)用探索和理論研究三個(gè)方面作了較為深入的探索和分析，獲取了很多有價(jià)值的信息，為高性能聚丙烯復(fù)合材料的開(kāi)發(fā)和應(yīng)用作了理論鋪墊，主要結(jié)果如下： 1