butene的例句大全

Duplication of bands in this region is also shown by trifluoropropyne and perfluoro 2-butene.

三氟丙炔和全氟丁烯 -2 在这个区域也出现双重谱带.

Duplication of bands in this region also shown by trifluoropropyne and perfluoro 2-butene.

三氟丙炔和全氟丁烯 -2 在这个区域也出现双重谱带.

The mass fraction of n-butene in mixed C 4 from catalytic cracking after etherized was approximately 40 %.

醚化后的催化裂化混合C4中含有质量分数约为40%的正丁烯,是生产丙烯的优质原料.

The copolymer of propylene with a small amount of butene was prepared by heterogeneous Ziegler ? Natta catalyst.

用负载型Ziegler- Nata 催化剂合成了丙烯同少量丁烯的共聚物,考察了单体进料比对催化活性的影响,发现此体系存在“共单体效应”.

The catalytic efficiency was more than 34.8 kg/ g. The poly ( 1-butene)( PBt) included both isotactic structure and atactic structure.

实验表明，该催化体系对Bt聚合催化效率可达34.8kg／g，聚合物为全同立构和无规立构聚1－丁烯的混合物。

The synergism between the ferrite spinel and γ-Fe_2O_3 which exist in catalysts for oxidative dehydrogenation of butene has been proposed and explained with cation/ anion vacancy.

通过对不同组成催化剂活性的研究，提出了催化剂中存在的铁酸盐尖晶石相和γ-Fe2O3相在氧化脱氢反应中的协增机理，并用阴/阳离子空穴加以解释。

With the increasing desire of butene, the n-butane oxidative dehydrogenation ( ODH) being as a vital reaction of the selective oxidation has drawn more and more attention throughout of the world.

随丁烯需求量的日益增加，正丁烷氧化脱氢作为其中的一个重要反应，越来越受到重视。