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- The influence of the resonance effect,the conjugative effect,and the inductive effect on the absorption frequency of the characteristic chemical bonds have been discussed mainly in this paper. 重点讨论了共轭效应、共振效应、诱导效应对功能团吸收频率的影响,并利用吸收频率数据比较有机物的某些性质,如羰基化合物的亲核取代反应,若香烃的亲电取代反应,某些酸的酸性强弱,有机物的异构现象。
- saturated absorption frequency stabilization 饱和吸收稳频
- saturation absorption frequency stabilization 饱和吸收稳频
- A medicine or an agent that induces absorption. 吸收剂导致吸收的药品或药剂
- Soil water not available for absorption by plants. 无效水植物不能吸取的土壤水
- He varied the transmission frequency. 他变换了无线电传送的频率。
- A unit of frequency equal to one cycle per second. 赫兹频率的单位,等于每秒一周
- I really appreciate his complete absorption in his work. 我很欣赏他对工作的极端专注。
- His work suffered because of his total absorption in sport. 他热中於运动而影响了工作。
- Fatal accidents have decreased in frequency over recent years. 近年来死亡事故发生的频率已经下降。
- We can often correlate age with frequency of illness. 年龄的大小往往与发病率有关。
- He painted the lid of the piano with absorption. 他专心致志地油漆着钢琴盖。
- Accidents on that highway are happening with increasing frequency. 那条高速公路上车祸发生得越来越频繁。
- His absorption in study is wonderful. 他专心研究使人敬佩。
- What do your absorption of foreign capital cover? 贵方吸引外资包括哪些范围?
- The absorption isotherms are equilibrium equations. 吸附等温线是平衡方程式。
- Attenuation of light is in the form of absorption. 光是以吸收的形式衰减。
- He tuned his radio to the police frequency. 他把无线电调到警方的频率。
- Interference by support absorption is a problem. 载体吸附的干扰是一个问题。
- High solar heat absorption capability. 太阳热吸收性能好。