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- 给/吸电子取代基donor/acceptor substituents
- 共轭CN与非共轭CF_3吸电子取代基对PPV类衍生物分子结构及光电性质的影响Influence of Conjugated CN and Non-conjugated CF_3 Electron Withdrawing Substituents on the Molecular Structure and Photo-electricity Properties of PPV-like Derivatives
- 复配内给电子体催化剂催化丙烯聚合Propylene Polymerization Catalyzed by Internal Electron Donor Compound Catalyst
- 外给电子体CMMS、DCPMS制备高结晶度聚丙烯的研究Study on donors of CMMS and DCPMS preparing high crystallinity polypropylene
- 金属有机配位聚合物是通过含给电子基团的双齿或多齿有机配体()一种或几种中心金属离子()过配位键自组装而形成的。Metal-Organic coordination polymer is formed by self-assembly through coordination bond between bidentate or multbentate organic ligand and central metal ion.
- 自由基free radical
- 文摘:车轮速度传感器的作用是将车轮的转速转变为交变的电压信号,输送给电子控制系统(ECU),并发出相应的指令。Abstract: The function of the wheel speed sensor is to transform the wheel speed into the alternative voltage signal and send it to the electronic control unit (ECU) which will send ont relevant instructions according to the signal.
- 有机磷一元酸四面体钴配合物加合醇反应中的取代基效应Substituent Effect in Addition Reaction of Alcohol to Tetrahedral Complex of Cobalt with Organophosphorus Monobasic Acids
- 胺基amidocyanogen
- 嫁给marry
- 桩基pile foundation work
- 电子信息electronic information
- 那次考试给了他很大的压力。The examination put a lot of stress on him.
- 残基residue
- "很抱歉在这个时候给你打电话。""I am sorry to call you this time of the day."
- 电子元器件electronic devices and components
- 抱歉,给你带来那麽多的麻烦。I'm sorry I have given you so much trouble.
- 氟取代基Fluoro substitent
- 电子科学与技术Electronics Science and Technology
- 洛基Loki