英语释义

• a toxic colorless flammable liquid organic base with a disagreeable odor; usually derived from coal

片语

pyridine derivatives吡啶衍生物

trimethyl pyridine三甲基吡啶（化）

ethyl pyridine乙基吡啶

refined pyridine精吡啶

Pyridine hydrofluoride吡啶氢氟酸盐

pyridine acid吡啶酸

dimethyl pyridine二甲基吡啶

pyridine pathway吡啶途径

polyvinyl pyridine聚乙烯吡啶

英汉例句

• in this dissertation, ir-catalyzed asymmetric hydrogenation of quinoline derivatives, pyridine derivatives and exocyclic enamines have been studied.

  本论文研究了铱催化的喹啉和吡啶衍生物以及环外烯胺的不对称氢化。

• the thermal stability and lifetime of three new tailed porphyrin triethylamine and pyridine quaternary ammonium salts were studied by isothermal thermogravimetric method.

  用等温热重技术研究了三种新型尾式卟啉三已胺和吡啶季铵盐的热稳定性及寿命。

• the study provides a theoretical base for preparing high activity and high selective catalyst for pyridine synthesis.

  该研究为制备高活性、高选择性的合成吡啶催化剂提供了理论依据。

• when an organic molecule like electron donating pyridine adsorbs on the surface, cations get reduced due to charge transfer.

  当一个有机分子如电子给予体吡啶吸附在表面上时，阳离子由于电子转移而还原。

• pyrrole, imidazole and furan are biodegradable organics, and pyridine are poor biodegradable organics.

  吡咯、咪唑、呋喃为可降解有机物，吡啶为难降解有机物。

• the determination of pyridine adsorption of samples revealed that materials have a typic characterization of proton acid, and the proton acid centers increased with the increase of s content.

  磺酸基很好地嵌入孔壁基质中，吡啶吸附测定显示了典型的质子酸特征，而且酸中心随硫含量增加而增多。

• pyridine bases are widely used in pharmaceutical, pesticide, aromatics, rubber and dyestuff industry.

  吡啶堿广泛应用于合成医药、农药、香料、橡胶和染料。

• the effects of solvent of grignard reagent, pyridine hydrochloride and boron tribromide on yield of product were investigated.

  考察了格氏试剂的溶剂、反应物盐酸吡啶和三溴化硼对脱甲氧基收率的影响。

• the pyridine system is of course very important in organic and pharmaceutical chemistry.

  在有机和药物化学中，吡啶系是非常重要的。

• it was a proper method to determine seven kinds of three pyridine class weed killers in soil.

  该方法是分析土壤中均三氮苯类除草剂农药的一种较为理想的方法。

• we calculated raman intensities of pyridine and water adsorbed on rough silver electrodes respectively by using density functional theory approach.

  本文利用密度泛函方法计算了吡啶和水分子分别吸附于粗糙银电极表面的拉曼光谱强度。

• in the original titrimetric solution, known as karl fischer reagent, the sulfur dioxide and iodine are dissolved in pyridine and methanol.

  在最初的滴定溶液里，已知的是卡尔费休试剂，二氧化硫和碘溶解在吡啶和甲醇中。

• pyridine can improve the ability of acylation when it complex with acyl chloride. the theory yield is high but aftertreatment is difficult and real yield is very low.

  吡啶既可做溶剂又可中和氯化氢，还可与酰氯形成络和物而增强酰化能力，理论产率很高，但后处理困难，实际产率反而很低。

• methods using the bromine, the lithium bromide and the promoter pyridine carried out the oxidized dehydrogenation.

  方法利用溴、溴化锂和助催化剂吡啶方法同时进行氧化脱氢。

• such pretreatments as calcination, sodium poisoning, and pyridine adsorption all have significant influences on the formation of radical-ions.

  发现热处理、钠离子中毒以及吡啶吸附等不同预处理方法均对正离子基生成有显着的影响。

• besides, there is one half solvent pyridine molecule in a asymmetric unit.

  每个不对称单位还包含有半个溶剂吡啶分子。

• the reaction of molar ratio of pentamer to pyridine and products structure is studied.

  由此研究了五聚体与吡啶的摩尔比与产物的结构的关系。

• the application of pyridine bases in the field of pharmaceuticals, pesticide, aromatics, rubber, and dyestuff are introduced.

  介绍了吡啶堿类化合物在医药、农药、香料、橡胶和染料等领域的应用。

• the process for the synthesis of pyridine using tetrahydrofurfuryl alcohol(thfa)as material was researched in this article.

  本论文主要研究了以四氢糠醇为原料合成吡啶的工艺。

• the catalyst deactivation kinetics of pyridine chlorination was investigated in an integral fixed reactor.

  采用积分反应器，研究了吡啶氯化反应中催化剂失活动力学。

• who have mastered the production of pyridine technology, will have the equivalent of a printing press.

  谁掌握了吡啶生产技术，将具有相当于一台印刷机。

• the changes in the sh signal due to adsorption of pyridine molecules on the ag film were investigated.

  研究了银膜表面由于吸附吡啶分子而引起的表面二次谐波信号变化。

• the exact results are obtained when the anion degree of polyacrylamide is bigger than 30% by the titration of cetyl pyridine bromide.

  当采用溴代十六烷基吡啶滴定法时，只有在阴离子度大于30%时才可以準确测出样品的阴离子度。