释义 |
benzene ring ˈbenˌzi:nriŋ 短语⁵³⁸³⁹ 基本英英近义反义例句例句 苯环
Noun: a closed chain of 6 carbon atoms with hydrogen atoms attached近义词 benzene nucleus苯核benzene formula苯式Kekule formula化 凯库勒式指苯结… Thebenzene ringis also seen in other compounds.苯环在其他化合物中也可以看见。 A strain may be defined as an organic compound containing abenzene ringplus a chromophore and auxochrome group.染料定义为含有苯环与呈色官能基与辅助成色官能基的化合物。 On the benzene ring, hydroxyl group has the highest activity of forming DBPs, and the second is ketone group; 苯环上羟基官能团生成消毒副产物的活性最高,酮基官能团次之; cnki The activity was better when the amino side chain on the benzene ring was flexible, and without rigid ring closing to amino; 当苯环上的氨基侧链为柔性链,且不在紧邻氨基处接刚性环时,活性都较好; fabiao The influence of temperature on yield and colour of product in bromination of benzene ring as well as the influence of bromine feeding speed on yield of brominated sidechains were investigated. 考察了反应温度对苯环上溴代产物收率和色泽的影响以及溴素滴加速度对侧链光溴代产物收率的影响。 ilib The substituent effects(the electronic effect, steric effect and position of substituted groups on the benzene ring were investigated. 计算的取代基效应与有机电子论的预测相一致。 dictall The synthesis methods of chalcone and benzene ring alkylation are discussed. 探讨了苯环上烃基化的条件以及查尔酮合成方法和条件。 cnki The benzene ring and alkene structural group are much more stable than structural group of sulfoacid for the carbonizing process of polystyrene. 在碳化过程中,聚苯乙烯阳离子交换树脂的苯环结构和烯烃基团比磺酸基团稳定。 cnki The benzene ring itself is not susceptible to low-temperature oxidation, but its substitution into a paraffinic chain increases the response of the latter. 苯环本身对低温氧化并不敏感,但当它取代进入烷烃链后,将增加链对低温氧化的响应。 blog.sina.com.cn Raman spectroscopy results showed that:the presence of electron withdrawing groups improved the bond energy of C- H in the benzene ring. 拉曼光谱分析结果证明:吸电子基团的存在使苯环上 C- H的键能提高。 fabiao The experimental results show that the azo group and benzene ring have marked influence on biodegradability; 实验结果表明:实验染料结构中的偶氮基和苯环对染料的可生化性有显著的影响; cnki |