烯烃

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 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。

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。

The economy of olefin production is compared,and the effectiveness of finance funding on cost and project choosing is analyzed,too.

对石脑油、煤、天然气为原料生产烯烃的经济性进行了分析。初步分析了融资方案对成本测算和项目决策的影响。

Initiator is one of the most important reagents in the polymerization of olefin and it closely related to the polymerization rate.

引发剂是烯烃聚合的重要助剂，聚合反应速率与之密切相关；引发剂的不同直接影响聚合反应时间和聚合放热的均匀性。

Collect supply/demand data and conduct marketing analysis for olefin products.

收集烯烃产品的市场供需数据并做市场调研。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。