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- The internal donor is 1,4-diether in this polypropylene catalyst, and this catalyst has some special properties. 通过对一种1,4-二醚为内给电子体的聚丙烯催化剂进行性能研究,揭示此类催化剂的一些特殊性能。
- Keywords Ziegler-Natta;Internal donor;Diether;Diketone;Diol ester; 内给电子体;二醚;二酮;二醇酯;
- Propylene Polymerization Catalyst with 1,3-Diol Dibenzoate as Internal Donor 1,3-二醇酯为内给电子体的丙烯聚合催化剂
- Study on Propylene Polymerization Catalyst with 1,3-Diether as Internal Donor 1,3-二醚为内给电子体的丙烯聚合催化剂的研究
- Past efforts by international donors to achieve judicial reform failed. 国际援助者推动司法改革的昔日努力已经失败。
- This paper reviewed latest researches in internal donors in Ziegler-Natta propylene polymerization catalysts, as well as the features of different internal donors (monoesters, diesters, diethers, diketones and diol esters). 摘要对丙烯聚合齐格勒－纳塔催化剂内给电子体的研究进展进行了综述，同时分析了单酯类、双酯类、二醚类、二酮类和二醇酯类化合物作为内给电子体催化剂的特性。
- I can send him a note via the internal mail system. 我可以通过内部通信系统给他发个通知。
- The Global Fund contributed to half of the disbursements from international donors. 全球基金捐款的一半来自国际捐助者。
- Ban will retain to Rangoon, where the international donors’ conference will take place. 潘先生将于周日抵达仰光，参加国际捐助者大会。
- The convoy commodore sees to the internal management of the convoy. 舰队司令官负责管理舰队的内部问题。
- The violence and jailbreak came a day after international donors at a conference in Paris pledged more than $20 billion for Afghanistan. 在这些暴力事件和监狱遭袭击的前一天，国际捐助者在巴黎举行会议，保证向阿富汗提供200多亿美元援助。
- The Research of a Sort of Polypropylene Catalyst Made by Composite Internal Donor 一种复合内给电子体聚丙烯催化剂的研究
- This is not the season for internal quarrels. 现在不是内部相争的时候。
- I talked to him on the internal telephone. 我在内部电话上与他交谈。
- There was a rapid increase in internal trade. 国内贸易迅速增长。
- In an attempt to return one small part of the country to normalcy government officials and international donors are promoting tourism to attract visitors to the Bamiyan area. 为了回报一小部分的国家恢复正常的政府官员和国际捐助者促进旅游业，以吸引游客到巴米扬地区。
- More encouragingly, Mr Zardari's officials have reportedly come up with a sensible stabilisation plan that should win the support of international donors (see article). 稍微可喜的是，扎尔达里的官员们正在上报一向合理的计划用以稳定局面，还应该能够争取到国际范围内一些援助者。
- Egyptian Foreign Minister Ahmed Aboul Gheit said international donors meeting in Sharm el-Sheikh have pledged more than $5 billion for Gaza reconstruction. 在埃及参加捐助国会议的代表筹集了44亿多美元，帮助重建加沙。加沙在以色列和哈马斯最近发生的冲突中受到战争的摧毁。
- A tube with a very small internal diameter. 毛细管一根内径十分细小的管子
- Nitroform is such a strong proton donor. 三硝基甲烷是一个极强的质子给予体。
