研究结果指出，双烯漆酚的含量与漆膜性能有关，是决定生漆质量的重要因素，这是生漆认识史上新的进展。
The results show that diolefinic urushiol content influences film properties and is an important factor affecting the quality of chinese lacquer.
对几种酵母细胞催化双烯和羰基的加氢反应作了一些初步研究。
The hydrogenation of diene compound and carbonyl group with yeasts was studied.
在实验室重点研究了工艺条件对选择性加氢脱双烯过程的影响。
The effect of process conditions on selective hydrogenation of diolefins was investigated in the laboratory.
考察了反应温度、空速及氢气与双烯烃的摩尔比等工艺条件对加氢效果的影响。
The effects of the operating conditions such as reaction temperature, liquid space velocity and the mol ratio of hydrogen to diolefins were investigated.
本发明的后加氢制备高质量汽油的系统和方法不仅能脱烯烃，还能脱硫醇和双烯。
The system and the method for preparing high-quality petrol by hydrogenation after recombining component oil refining hydrocarbon cannot only remove olefin, but also can remove thioalcohol and diene.
通过烯丙基溴化锌对手性亚胺的两次不对称加成，合成了光活性的双烯丙基化的新型手性二胺。
A novel chiral diallylic diamine has been synthesized through double addition of allyl zinc bromide to chiral imines in this contribution.
关环转换反应是形成碳碳双键的重要反应之一，即双烯化合物在金属碳烯催化下关环得到环烯类化合物。
Ring closing metathesis (RCM) of dienes to cycloalkene provides an important tool for C-C double bond formation catalyzed by metal carbene.
本文对酮的二甲硅基双烯醇醚的合成反应机理和反应条件进行了探讨，在此基础上合成了四个酮的二甲硅基双烯醇醚，产率较高。
The synthetic mechanism and conditions of dimethylsilyl bis-enol ethers of ketones were studied and four dimethylsilyl his-enol ethers of ketones were synthesized and the yields were high.
本文对酮的二甲硅基双烯醇醚的合成反应机理和反应条件进行了探讨，在此基础上合成了四个酮的二甲硅基双烯醇醚，产率较高。
The synthetic mechanism and conditions of dimethylsilyl bis-enol ethers of ketones were studied and four dimethylsilyl his-enol ethers of ketones were synthesized and the yields were high.
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