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- Advances in ethylene selective trimerization catalysts,especially composition,activity and cost of trimerization catalysts and their overall selectivity to 1-hexene. 对乙烯选择性三聚反应进行了论述,着重分析了催化剂的组成、活性、成本和1-己烯的总选择性,并展望了烯烃选择性齐聚反应的发展。
- Keywords ethylene;selective trimerization;catalyst;1-hexene; 乙烯;选择性;聚合反应;1-己烯;
- She helped to select a dress for Ruth. 她帮着给露丝选了一件衣裳。
- She is selective in the dresses she wears. 她对于自己穿的衣服精挑细选。
- selective trimerization 选择性
- She only stays at select hotels. 她只住一流旅馆。
- Can student willfully select the course? 学生可以随意选择课程吗？
- A select group were invited to the wedding reception. 一群经过挑选的人士被邀请参加婚宴。
- I'm very selective about the people I associate with. 我与他人来往极慎重，不滥交。
- Select the drive in which you want to store the document. 选择想把文件存储在其中的驱动器。
- Our shops select only the very best quality produce. 我们商店都是精选的质量最高的产品。
- This is a very select area; you have to be rich to live here. 这是高级住宅区，你必须有钱才能住在这里。
- The trimer also breaks down into the toxic monomer form. 三聚体也能分解成有毒的单体形式。
- Unlike any other channel so far examined, it is a trimer. 它是一个三聚体，与目前所研究过的任何其他通道都不同。
- A select group of their friends was invited to the wedding. 他们的经过挑选的一群朋友应邀参加婚礼。
- Press select to open up the name entry screen show below. 按Select打开显示在下方的Nameentry屏幕。
- Select the protocol tab and un-check all protocol except modem. 选择Protocolstab, 不要选取所有的协议，除Modem之外。
- A select group of people were invited to the first performance. 经仔细挑选的一些人应邀观看了首场演出。
- Let every man who pants for fame select his own style of pants and go ahead. 让每一个渴望名声的人捡他自己(喜欢)的式样的内裤去吧。
- Antibiotics produce a selective change in flora. 抗菌素引起菌丛的选择性变化。
