二烯烃

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。

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

Selective hydrogenation ; Nickel catalyst ; FCC light gasoline ; Diene

选择性加氢；镍催化剂；催化裂化轻汽油；二烯烃

The research of coplymerization of ethylene and conjugated diolefin has theory value as well as practical significance.

乙烯和共扼二烯烃共聚合的研究不仅具有理论价值而且还有实际意义。

Ii is a process with low investment and great profit to use the C5 etherealization product as the blending component of gasoline with high octane number. The C5 fraction is cut from steam cracking and it's diolefins are saturated by selective hydrogenation.

裂解C5馏分选择性加氢饱和二烯烃后，醚化产物作为高辛烷值汽油调合组分是一条投资少、见效快的工艺路线。

The stable carbon isotope s of saturated hydrocarbon and specific compound composition of the oil from the trachyte near the crater are relatively low,and the negative anomalies of the .

通过对欧利坨子原油地球化学特征的研究，发现原油性质的差异同储集层与火山口的相对位置有着密切的关系，在火山口附近的粗面岩储集层中，原油的饱和烃及其单体碳同位素值偏轻，类异戊二烯烃的碳同位素负异常基本消失，原油的CPI和OEP值较低(平均为1·21和1·06)。

Alkylation of C6D6 with 1-dodecene using Br-ALCl3 as a catalyst was firstly carried out. Molecular structures of products, dodecylbenzene isomers, were analyzed by GC-MS and NMR, and the deuterated atom in the dodecylbenzenes was verified to be connected with 1-carbon of the side chain.

首先进行了Br-AlCl3催化氘代苯与1-十二烯烃的反应，通过GC-MS及NMR分析产物十二烷基苯同分异构体的结构，验证了氘原子与产物侧链1-位碳相连的结论。

The more the types of unstable constituents,such as unsaturated hydrocarbons,especially conjugated dienes,arene s and so on,and the higher the unstable constituent contents in diesel fuel,the more easily the oxygen absorption reaction takes place.

柴油中含有某些不饱和烃，特别是共轭二烯烃、环烷、芳香烃类等不安定组分的种类越多及含量越高，就越容易发生吸氧氧化反应，安定性能或质量下降越明显。

However, in some circumstances, such selective hydrogenation catalysts can produce green oil by oligomerizing the acetylenes and diolefins.

然而，在某些情况下，这种选择性加氢催化剂可通过使炔烃和二烯烃低聚而产生绿油。

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。