查询词典 olefin

It is perfect component of the lower olefin and environment protected for blended gasoline.

是调合低烯烃环保汽油的理想组分。

The progress in the research and application of non-metallocene catalysts for olefin living polymerization has been reviewed in recent years.

阐述了近些年来非茂金属烯烃活性聚合催化剂的研究进展及其应用。

The catalytic features of olefin polymerization were studied under different conditions.

用所合成的茂金属化合物与MAO所组成的催化体系对乙烯、丙烯的聚合进行了研究。

The selectivity of light isoparaffin was improved obviously, but with the increase of the olefin's selectivity.

在合成产物中，短链异构烷烃的选择性被显著提高，同时也伴随烯烃产物选择性的提升。

FI catalyst as a high performance catalyst is developed for olefin polymerization in recent years.

FI催化剂系一近几年发展起来的烯烃聚合高性能催化剂。

Increasing the conversion of olefin,promoting the cracking reaction and...

提高烯烃的选择性转化、促进裂化反应并提高丙烯产物的选择性，有利于提高丙烯产率。

The effect of the acid site strength on the light olefin formation temperature was also elucidated.

同时，探讨了SAPO分子筛表面的酸强度对低碳烯烃生成温度的影响。

In order to reduce olefin and sulfur content, FCC gasoline hydrorefining and hydroisomerization technology was studied.

为了降低催化汽油中的烯烃含量、硫含量，进行了催化汽油加氢精制加氢异构化的研究。

These fabrics are made of such fibers as polypropylene, olefin, polyester, nylon, and acrylic.

这些织物使用的纤维有：聚丙烯、烯烃、涤纶、尼龙以及丙烯腈纤维。

The method has short starting period and light catalyst damage degree, which can be used for low-carbon olefin industrial production.

该方法开车周期短，催化剂损害程度轻，可用于低碳烯烃的工业生产中。

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。