查询词典 olefin

Herein the latest developments of olefin aqueous polymerization which are mainly promoted by late- transition metal catalysts are reviewed including ethylene,α-olefins, cyclo-olefins and dienes polymerization, along with ROMP of cyclo-olefins and CO/olefins copolymerization.

本文综述了后过渡金属催化剂水相催化烯烃配位聚合的一些新进展，内容包括烯、α-烯烃、环烯烃、二烯烃的聚合反应和环烯烃的开环聚合反应以及CO/烯烃的共聚反应等方面。

We also achieved the Baylis-Hillman reaction of β-substituted activated olefin with N-tosylated imines.

对于β位有取代基的活化烯文献报道只有在高温高压下才能进行Baylis-Hillman反应。

Isomerized gasoline is the cleanest high-octane gasoline component, which is free of sulfur, olefin and aromatics.

异构化汽油不含硫、烯烃及芳烃，是最洁净的高辛烷值汽油组份。

The line 12-22 of page 6 of the above-mentioned abstract of the patent write: This composition of this patent contains one kind or many kinds of emollients such as gylciern, lanoline, aloe, liquid-state olefin, complex PRG, monostearin, compound Myrj, sodium dodecyl sulfate and so on.

上述专利摘要第6页第12——22行写道：此发明成分包括一种或多种润肤剂如甘油、羊毛脂、芦荟、液态石蜡、复合PRG、甘油单硬脂酸酯、复合Myrj、吐温、十二烷基硫酸钠等，将2种或2种以上的上述成分混合起来提高润滑效果和油质。

The Straight Run and Hydrocracked Naphthas are combined and pretreated and stripped in the Naphtha Hydrotreating unit to remove sulfur , nitrogen compounds , mental, olefin and water.

直馏石脑油和加氢裂化石脑油混合后在石脑油加氢装置通过加氢处理及汽提脱去硫、氮、砷、铅、铜、烯烃和水等杂质。

Uricase inhibitor was given subcutaneously by lanolin mixed with olefin in acute animal model with Hyperuricemia on rat, which has the characters of high uric acid and maintaining a long time.

以羊毛脂石蜡油（质量比3：2）为溶剂配制尿酸酶抑制剂，采用皮下注射的方法造模，所复制的大鼠代谢性高尿酸血症模型具有血尿酸值高、维持时间长的特点。

In the selective oxidations, Manganese porphyrin mimic enzyme systems supported on different inorganic supports are designed and developed, which are applied in studies of green processes, such as, the selective olefin epoxidation with oxygen in either ionic liquid or water, the oxidation of alcohols.

在选择性氧化反应中，设计制备了不同无机载体的锰卟啉模拟酶体系，分别在离子液选择性和水相中开展了以氧气为氧源的烯烃环氧化、醇的氧化等绿色反应过程的研究。

The kinetics model was gotten based on the alkyl mechanism, light olefins re-absorption and re-reaction. The kinetics experiment is carried out over the selected Fe-Mn-K catalyst, and the kinetics model parameters is got base on the kinetics experiment data. The parameters explain the reaction results that the carbon monoxide content is high, the methane content is the biggest of the hydrocarbon products and the olefin content is bigger than the corresponding alkenes content.

本文同时对该反应的反应机理和动力学进行了研究，以烷基机理为基础，建立了考虑烯烃再吸附和二次反应的动力学模型，并在选定的催化剂上进行了相应的动力学实验，结合动力学实验数据计算得到了相应的动力学模型参数，模型参数值解释了反应产物中CO的含量较高，以及烃类产物中CH4含量最高和烯烃含量大于相应的烷烃含量。

High content of olefin and butadiene in C 4 feedstock and the oxygen compound in the tail gas of MTBE unit are the main constraint factors of alkylation unit and the production cost of high octane gasoline was increased.

经过研究开发，确定了新的碳四加工联合工艺生产高辛烷值汽油的方案，该联合工艺由碳四选择性加氢，MTBE和烷基化装置三部分组成，并在MTBE装置中采用D0 0 5催化剂以及增设甲醇回收系统压力控制技术。

The present invention concerns a process and an apparatus for continuous polymerisation of olefin monomers.

本发明涉及连续聚合烯烃单体的方法和设备。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。