The betaine will collapse to the alkene only when these two functions are eclipsed.

A hydrocarbon was known to be either an alkene or alkane.

某碳氢化合物已知可能是烯烃或是烷烃.

The hydrocarbon must be an alkene.

这个碳氢化合物必定是烯烃.

Many constituents are mutagens and carcinogenic such as alkenes, nitrosamines, polynuclear aromatic and heterocyclic hydrocarbons, amines.

烟草的很多成分都会引起有机体突变以及致癌,如烯烃化合物, 亚硝胺, 多核芳香烃以及多环碳氢化合物和铵.

The rate constants of radical and electrophilic addition to alkenes are dominated by different factors.

烯烃的自由基加成和亲电加成速率受不同的因素控制.

Epoxidation of alkenes is one of the most important reactions in organic, synthesis.

烯烃环氧化在有机合成中占有十分重要的地位.

The invention relates to a work-starting method of FCC gasoline hydrodesulfurization to degrade the alkenes.

本发明涉及一种FCC汽油加氢脱硫降烯烃技术的开工方法.

Oil & oil products and alkanes, alkenes & polymers.

石油 、 石油产品、烷烃 、 烯烃 以及 聚合物.

Therefore, the market for alkenes products is broad with immense economic potential.

烯烃类产品市场广阁,经济效益潜力巨大, 因此该项目的市场前景非常看好.

Recent progress on asymmetric epoxidation of alkenes by chiral catalysts was summaries.

综述了手性催化剂催化的不对称环氧化反应研究进展情况.

Catalysis: Development of chirometallopor-phyrins as enantioselective oxidation catalysts of alkenes and sulfides.

催化作用: 开发新型手性金属催化烯类及硫醚类之对映选择性氧化.

R " is a replaceable function , e . g . acetoxy, methoxy, their acyloxy and alkoxy homologs or halo.

R ” 是取化基,如乙氧基 、 甲氧基及它们的环氧和烷氧同系物或卤基.

Both the R groups are alkoxy residues.

两个R基团都是烷氧基.

It offers good properties for use with other types of alkyd primer.

和其它类型的醇酸底漆配套性能良好.

Alkyd paints may have reduced adhesion to Star Marine Epoxy Mastic NTC.

如果复涂以醇酸漆,将有可能降低配套体系的附着力.

Compatible with epoxy, chlorinated rubber, alkyd, polyurethane, phenolic top coatings and pitch epoxy rust inhibiting paint.

可以与环氧面漆 、 氯化橡胶面漆 、 醇酸面漆 、 聚氨酯面漆、环氧沥青防锈漆 、 酚醛面漆等配套使用.

Gloss, Fullness, Adhesion, Hardness, Compatible with Alkyd resin Fast dry.

光泽, 膜厚感, 密著, 硬度, 与醇酸树脂相容性,速乾.

Commonly used light oil for epoxy resin, alkyd resin, acrylates.

常用的平油,众为环氧树脂型 、 醇酸树脂型 、 丙烯酸脂型.

It's a long-oil alkyd-based primer with red lead pigments.

含红丹颜料的长油醇酸底漆.

Alkyd paints may have reduced adhesion to Star Maling Epoxy Mastic Hold.

如果复涂以醇酸漆,将会存在降低配套体系附着力的问题.

May be top coated with alkyd paints as recommended.

与推荐的醇酸面漆配套使用.