等环的

Catalytic dehydrogenation of cyclohexanol to cyclohexanone is an industrially important...

环己酮是几内酰胺生产工业中的重要中间体，同时环己酮还广泛用作有机溶剂、合成橡胶以及工业涂料等，是化学工业的一个重要产品。

Catalytic dehydrogenation of cyclohexanol to cyclohexanone is an industrially important reaction in the manufacture of caprolactam, which is used as a material for the synthesis of nylon.

环己酮是几内酰胺生产工业中的重要中间体，同时环己酮还广泛用作有机溶剂、合成橡胶以及工业涂料等，是化学工业的一个重要产品。

General approaches involve the nucleophilic cycloalkylation, carbenoids addition of certain amino acid derivatives and derivatization from simple cyclopropane compounds.

制备方法包括对简单氨基酸衍生物的亲核环烷基化、卡宾加成以及简单环丙烷化合物的衍生化合成等。

The influences of the amount of 1,2-diaminoethane, temperature, molar ratio of epichlorohydrin and dimethylamine, and time on the viscosity and cationic degree of polyamine flocculants were investigated.

以环氧氯丙烷和二甲胺为原料，乙二胺为交联剂，制备有机阳离子聚合物，研究乙二胺加入量、反应温度、环氧氯丙烷和二甲胺的摩尔比、聚合时间等对聚合物粘度和阳离子度的影响。

The influences of reaction parameters were discussed respectively, such as esterification time and temperature, catalyst dosage, ring-closing temperature, dosages of ECH, NaOH, etc.

重点研究了酯化阶段反应温度、反应时间及催化剂用量等影响因素；闭环阶段反应温度、碱的形态及ECH用量对闭环反应的影响。

The class of idempotent semirings is a very important class of semirings. Many experts and scholars thorough, painstakingly and systematically investigate it.

幂等元半环是一类非常重要的半环，许多专家学者对其进行了深入细致的系统研究。

Methods: The cyclodextrin, concentration, pH, organic solvent were studied, and the results indicated that the enantiomer of ephedrin and ephedrine levorotatory were baseline separated under the following experimental conditions: uncoated fused silica capillary (75 μm× 68 cm), 25 mmol/L Tris, 2% HP-β-CD and 1% SBE-β-CD, pH was adjusted at 3.0 by phosphoric acid, and 15 kV separation voltage.

以SBE-β-CD和HP-β-CD二元环糊精为手性添加剂，探讨了环糊精种类及浓度、pH、有机溶剂种类等因素对麻黄碱及伪麻黄碱对映体拆分的影响，结果表明：毛细管：未涂渍熔融石英毛细管75μm×68 cm（有效长度60 cm）。分离用缓冲液为25 mmol/L的Tris缓冲液，含2.0% HP-β-CD和1.0% SBE-β-CD，用磷酸调节pH至3.0。

The availability of determining the ratio of cucurbiturils inclusion complexes with the equivalent molarity was discussed.

讨论了等摩尔连续变化法测定瓜环包结配合物包结比的理论依据，并利用紫外吸收光谱和荧光光谱测定了七、八元瓜环(Q [7]，Q[8])与α-萘胺(q1)、β-萘胺(q1)两种异物体相互作用形成包结配合物的包结比。

Through chemical analysis, muskrat of excretive of the cell outside body is sweet as sweet as natural excretive muskrat all contain annulus seventeen alkyl ketone, muskiness ketone and cycloalkanes kind, ester kind, mellow kind with aldehyde kind wait for composition.

经过化学分析，体外细胞分泌的麝鼠香和自然分泌的麝鼠香均含有环十七烷酮、麝香酮以及环烷类、酯类、醇类和醛类等成分。

So this article tries to study the theory basis and workable patterns in order to give theory support to pirouette the cooperation.

因此，本文试图在有关环渤海区域经济合作的理论基础、可行性模式的选择等方面加强研究，为推动环渤海区域经济合作提供理论支持。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。