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[求助]
求助个Than前后一致的问题 已有1人参与
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近来写文章被这个搞晕了,than前后比较的东西应该是对等的,但看文献里面有一些than后面用了does,有一些没有,谁能给我讲解一下,谢谢了。投文章审稿人说我的英语需要找人润色一下。 下面是文献里面摘的一些例句: These catalysts exhibit increased thermal stability and produce higher molecular weight polymers than conventional metallocene catalysts 18-ZrCl/MAO produces polyethylene with a higher molecular weight than 18-ZrMe/B2 ethylene-bridged catalyst 19-ZrMe is more active than methylene-bridged catalyst 18-ZrMe 18-TiMe/B2 and 19-TiMe/B2 exhibit∼65X and∼35X greater polymerization activity, respectively, than does the monometallic catalyst 20-TiMe/B1 catalyst 19-TiMe enchains 15.4% more styrene than does 20-TiMe/B1. calculated reactivity ratios indicate that binuclear catalyst 19-TiMe/B2 favors styrene insertion more than does catalyst 20-TiMe/B1 Single-component Ni(II) catalyst 33 (Chart 17),86 based on a 3,30-bisalicylaldimine ligand, yields polyethylene with lower activity than the mononuclear Ni(II) Grubbs’ catalyst |
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2楼2015-10-07 20:17:15
hk20012002
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3楼2015-10-07 21:05:37
agar
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慕亦凝: 回帖置顶 2015-10-08 20:39:45
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triiawypm(慕亦凝代发): 金币+10, 谢谢应助,外语版有你更精彩 2015-10-08 20:40:22
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These catalysts exhibit increased thermal stability and produce higher molecular weight polymers than conventional metallocene catalysts(后面跟的句子结构 “exhibit。。。。。。”因为重复省略) 18-ZrCl/MAO produces polyethylene with a higher molecular weight than 18-ZrMe/B2 (后面跟的句子结构 “produces ......同上,省略) ethylene-bridged catalyst 19-ZrMe is more active than methylene-bridged catalyst 18-ZrMe 后面跟的句子结构 “is..........."同上,省略) 18-TiMe/B2 and 19-TiMe/B2 exhibit∼65X and∼35X greater polymerization activity, respectively, than does the monometallic catalyst 20-TiMe/B1 (does 代表前面的 “exhibit”,省略后句子结构倒装) catalyst 19-TiMe enchains 15.4% more styrene than does 20-TiMe/B1. (does 代表前面的 “enchains”,省略后句子结构倒装) calculated reactivity ratios indicate that binuclear catalyst 19-TiMe/B2 favors styrene insertion more than does catalyst 20-TiMe/B1 (does 代表 “favors”,省略后句子结构倒装) Single-component Ni(II) catalyst 33 (Chart 17),86 based on a 3,30-bisalicylaldimine ligand, yields polyethylene with lower activity than the mononuclear Ni(II) Grubbs’ catalyst (后面跟的句子结构 “yields。。。。。。”因为重复省略) |
4楼2015-10-07 21:58:02
5楼2015-10-07 22:08:14
| 顶一下。 |
6楼2015-10-08 08:52:34
agar
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