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- To add one or more alkyl groups to(a compound. 使烷基化在（一种化合物）中添加一个或多个烷基团
- To add one or more alkyl groups to(a compound). 使烷基化在（一种化合物）中添加一个或多个烷基团
- A process in which an alkyl group is added to or substituted in a compound,as in the reaction of alkenes with alkanes to make high-octane fuels. 烷化作用，烷基取代向一种化合物中添加或用一个烷基团替代的过程，如用烯烃和烷烃发生反应以制得高辛烷值燃料。
- A process in which an alkyl group is added to or substituted in a compound, as in the reaction of alkenes with alkanes to make high - octane fuels. 烷化作用，烷基取代向一种化合物中添加或用一个烷基团替代的过程，如用烯烃和烷烃发生反应以制得高辛烷值燃料
- A process in which an alkyl group is added to or substituted in a compound, as in the reaction of alkenes with alkanes to make high-octane fuels. 烷化作用，烷基取代向一种化合物中添加或用一个烷基团替代的过程，如用烯烃和烷烃发生反应以制得高辛烷值燃料
- The results suggest that an increase in alkyl group chain substituted on the cation ring correspond with an increase in toxicity. 结果表明，随着离子液体阳离子咪唑环上烷基取代基的增大，离子液体对酵母细胞的毒性逐渐增大。
- Conclusion Introducing the methyl group or a low alkyl group resulting in the high selectivity and increase of its activity. 结论甲基或低级烷基的引入导致了高选择性,使其活性增大。
- The yields are influenced by the substituents with high yields for phenyl group and low yields for alkyl groups. 反应产率受取代基影响较大,苯基取代时产率较高,烷基取代时产率较低;
- The homologs of benzene are those containing an alkyl group or alkyl groups in place of one or more hydrogen atoms. 苯环上一个或多个氢原子被烷基基团所取代的化合物称为苯的同系物。
- The nonpolar segments of surfactants include straight-chain and branched alkyl groups. 非极性表面活性剂链段包括直链和支链的烷基。
- Result showed that dialkyl quaternary ammonium salts inhibited the growth of Aeromonas hydrophila and Flexibacter colnmnaris,and the short alkyl group is more effective than the long one. 结果表明,双烷基季铵盐对嗜水气单胞菌和柱状屈桡杆菌生长均具有一定抑制作用,且短链双烷基季铵溴盐比长链的抑菌效果好。
- At the othe r end of stearic acid is C17 alkyl group which is similar to the molecular struct ure of natural rubber.So that, the interface on the modified wollastonite/rubbe r was linked fairly well. 硬脂酸另一端C17烷基与天然橡胶的结构十分相似，彼此间相容性较好，硅灰石在橡胶中分布较均匀，因而活性硅灰石／橡胶复合材料界面粘结较好。
- The nonpolar segments of surfactauts include straight-chain and branched alkyl groups. 非极性链段包括直链和支链的烷基。
- At high temperature and in the presence of phosphoric acid, the alkyl group is fractured into the corresponding olefine, according to which the alkyl of long-chain aliphatic amine can be identified. 在高温和磷酸存在下，脂肪胺中的烷基裂解为相应的烯烃，以此可鉴定脂肪胺的烷基链长。
- The homologs of benzene are those containing a alkyl goup or alkyl groups in place of one or more hydrogen atoms. 苯的同系物是那些苯环上含有单烷基（取代一个氢）或多烷基（取代多个氢）的物质
- The electron withdrawing group (F) being introduced into the alkyl groups of the n-hexyl ZDDP is able to strengthen chemical adsorption between ZDDP and Fe atoms. 在伯烷基上吸电子基团能增强硫原子与铁原子之间的化学吸附作用力。
- The addition of alkyl groups to PAHs enhances the carcinogenic potential of these compounds. 烷烃加在多环芳烃上的系列会提高这些化合物的致癌作用。
- Sulfur can be used to make gunpowder. 硫磺可以用来制造火药。
- New quaternary ammonium salt cationic surfactants with 3 long chain alkyl groups were preparad from 4-alkyldiethylenetriamine and fatty acids through amidation and quaternization. 以个长链烷基二亚乙基三胺和脂肪酸为原料，经酰胺化、季铵化合成了6种未见文献报道的三长链烷基季铵盐型阳离子表面活性剂。
- Polysiloxane modified by alkyl group 烷基改性聚硅氧烷
