Gas chromatography was used to analyze the residue of butene-fipronil in rice.

研究并建立丁烯氟虫腈在大米中残留分析方法。

The isomerization of butene-1 occurred in kinetic region with 30 ~ 40 mesh catalyst.

当用30 ~ 40目催化剂时丁烯- 1异构化在动力学区域。

In addition, alkaline ligands can prevent isomerization of 1 butene to 2 butene effectively.

另外，碱性配体能有效地防止1 -丁烯异构成2 -丁烯。

The kinetic equations obey the L-H mechanism of triangular reaction of isomerization of butene.

动力学方程服从丁烯异构化三角反应的L - H机理。

The butene-1 (co) polymers show a good balance between processability and elastomeric behavior.

该丁烯- 1(共)聚合物表现出加工性与弹性体行为之间良好的均衡。