查询词典 diene

Simultaneously, we proposed the working model of assembled dendritic catalyst for HDA reaction of Danishefsky's diene with aldehydes.

同时也考察了Dendrimer取代基的大小、位置对产物收率与对映选择性的影响，结果发现L〓系列表现出较明显的Dendrimer效应。

Combined with stoichiometric method, the diene value in cracking gasoline was determined by Fourier Transform Infrared Spectroscopy at selected wavenumber region.

用傅里叶红外光谱仪，在选定的波数范围内，采用化学计量学法测量乙烯裂解汽油的二烯值。

ExxonMobil Chemical is one of the world′s leading producers of EPM copolymers and EPDM (ethylene propylene diene rubber) terpolymers.

埃克森美孚化工是世界领先的二元乙丙橡胶和三元乙丙橡胶 EPDM）生产商。

The present invention relates to a rubber composition including 100 parts by mass of a rubber component including a natural rubber and/or a diene rubber and 0.5 to 80 parts by mass of a biodegradable aliphatic polyester.

本发明涉及相对于含有天然橡胶及/或二烯烃系橡胶的100质量份橡胶成分，进而在0.5～80质量份的范围内含有生物降解性脂肪族聚酯的橡胶组合物。

The results showed that, both diene and alkaline nitrogen-containing compounds had negative influence on the aromatization stability of the catalyst.

用小型固定床加压反应器研究了液化石油气（C4 LPG）中的丁烯在纳米ZSM-5型催化剂DLG-1上的低温芳构化反应，重点考察了原料中二烯烃和碱性氮杂质，以及反应温度、压力和C4 LPG进料重量空速条件对催化剂芳构化反应活性及稳定性的影响。

The rubber composition for covering a carcass cord of the present invention comprises 25 to 80 parts by mass of silica, 1 to 15 parts by mass of a silane coupling agent and 3 to 30 parts by mass of an organic vulcanizing agent represented by the following general formula (1):- n - wherein R is -(CH 2 -CH 2 -O) m -CH 2 -CH 2 -; x is an integer of 2 to 6; n is an integer of 10 to 400; and m is an integer of 2 to 5, based on 100 parts by weight of a diene rubber, and a tire prepared by using the rubber composition.

以100重量份的二烯橡胶为基准，本发明的用于包覆胎体帘线的该橡胶组合物包含25～80质量份的二氧化硅、1～15质量份的硅烷偶联剂和3～30质量份的由如下化学式(1)表示的有机硫化剂：- n -，其中R是-(CH 2 -CH 2 -O) m -CH 2 -CH 2 -；x是2～6的整数；n是10～400的整数；并且m是2～5的整数，以及使用该橡胶组合物制备的轮胎。

The morphological structure of dynamically vulcanized thermoplastic ethylene propylene diene monomer/polypropylene was investigated with scanning electron microscope.

用扫描电镜研究了三元乙丙橡胶聚/丙烯动态硫化热塑性弹性体相态结构的形成过程，探讨了交联密度、制备工艺、螺杆转速对EPDM/PP TPV相态结构的影响。

A rubber composition for a tire improving friction performance on ice, comprising 0.5 to 20 parts by weight of a nonmetallic fiber having an average fiber diameter of 1 to 100 μm and an average fiber length of 0.1 to 5 mm, and 0.5 to 30 parts by weight of a filler having at least 2 projections and an average length of the projections of at least 10 μm based on 100 parts by weight of a diene rubber, and a pneumatic tire comprising the same.

提供了一种改善冰上摩擦性能的轮胎用橡胶组合物，以及含有该橡胶组合物的充气轮胎。一种轮胎用橡胶组合物，以100重量份的二烯橡胶为基准，还含有0.5～20重量份平均纤维直径为1～100μm并且平均纤维长度为0.1～5mm的非金属纤维，以及0.5～30重量份的具有至少2个突起并且平均突起长度至少为10μm的填料，以及一种含有该橡胶组合物的充气轮胎。

The diene currently used in the manufacture of EPDM rubbers are DCPD, ENB and VNB.

在ISO/TR 7620中汇集了近400种具有腐蚀性的气态和液态化学品对各种橡胶性能作用的资料，并规定了1-4级表示其作用的程度，见表1。

Give the structural formulas and IUPAC names for the diene isomers, C7H10, having a cyclohexyl ring.

答：给出分子式为C7H10的二烯烃的结构式，并用IUPAC命名

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。