查询词典 reductive

This paper reviews the recent progress of all kinds of reductive amination methods and their ap-plications in organic synthesis, particularly emphasis on the introduction to the reductive amination with high efficiency and high selectivity.

综述了近几年来各种还原胺化方法的研究进展及其在合成中的应用，尤其对高效和高选择性的还原胺化进行了重点介绍

Reductive dechlorination of chlorinated Endocrine Disrupting Chemicals in Water by metallic catalytic reduction was studied for further understanding the application of palladiumized iron-scrap bimetallic catalytic reduction technology in treating high molecular weight and structure complicated refractory chlorinated organic pollutans, especially, the reductive dechlorination reaction of the three chlorinated EDCs: 2,4-dichlorophenoxyacetic acid(2,4-D), Hexachlorocyclohexane, and chlordane.

通过研究水体中有机氯类环境内分泌干扰物在金属催化还原体系中的还原脱氯反应，考察了铁屑镀钯双金属催化还原技术在处理水体中大分子量复杂结构的难降解氯代有机污染物的应用，着重研究了水体中2，4-二氯苯氧乙酸(2，4-D)、六六六和氯丹三种有机氯类环境内分泌干扰物在Pd/Fe催化还原体系中的还原脱氯行为。

Contemporary education will be reductive consider the methodology base with serve as main, teach phenomenon and educational activity complexly originally by reductive for simple corporeal fact, the person's existence by reductive for order of a group of societies.

现代教育将还原论作为重要的方法论基础，原本复杂的教育现象和教育活动被还原为简单的物质事实，人的存在被还原为一组社会秩序。

It is suggested that quite a lot of the Be, Co, Cu and Pb could be originated from the syngenetic stage during which the coal-forming plants grew. The strongly seawater-effected peat bog with the reductive and alkaline water could be in favor of the relative enrichment of the Be, Co and Cu, and the faintly seawater-effected bog with the slightly reductive and alkaline water could be in much favor of the enrichment of the Mn, Mo, Ni, P, Pb, Th, Tl and U.

认为凯里煤中相当一部分Be、Co、Cu和Pb起源于成煤植物生长期间的同生阶段；受海水影响强烈的还原偏碱性沼泽环境有利于Be、Co和Cu的相对富集，受海水影响微弱的弱还原性和弱碱性环境条件更有利于Mn、Mo、Ni、P、Pb、Th、Tl和U的富集。

Most modern philosophers of mind adopt either a reductive or non-reductive physicalist position, maintaining in their different ways that only the brain exists.

最现代的心灵哲学家接受还原或者非还原的物理主义，在这两条不同道路上都持有只有大脑是存在的观点。

Reductive puddling calls dissolve of be in harmony direct and reductive puddling again, compare with photograph of traditional puddling technology, have technological process short, energy uses u......

融溶还原炼铁又称直接还原炼铁，和传统炼铁技术相比，具有工艺流程短、能量消耗少、环保节能的。。。。。。关键词：技术天津装置山东合同，集团，国内，最大

RESULTS Expressions of antibodies under the reductive and non-reductive conditions were detected as we thought.

结果 所得到抗体在还原条件和非还原条件下的表达情况与预期相同。

I think that each of the reductive views is incorrect, while each of the non-reductive views holds some promise.

我认为还原观都是错的，而每一个非还原观都持有一些预设。

This indicates that both the reductive dissolution of ferrihydrite and the reductive desorption of As occurred in the batches incubated with arsenicresistant denitrificator and Asadsorbing ferrihydrite.

这说明，体系中水铁矿的还原性溶解和As的还原性解吸已经发生。

In chapter four, the preperation of ytterbium diiodide was examined. The reductive cleavage of Se-Se bond and S-S bond induced by ytterbium diiodide was investigated. The reaction of diselenides and disulfides with allylic bromide promoted by ytterbium diiodide was also examined. The intermolecular Barbier-type reaction induced by ytterbium diiodide was studied. In the last section of this chapter, the intermolecular reductive coupling of nitriles with azides induced by samarium diiodide was investigated.

第四章，研究了二碘化镱的制备方法，以及二碘化镱作为一种优良的单电子转移试剂在有机合成中的应用：二硒醚的Se--Se键和二硫醚S-S键的还原断裂，及其在合成烯丙基硒醚，硒代酯和烯丙基硫醚，硫代酯中的应用，实验结果表明二碘化镱也能促进分子间的Barbier反应，而文献认为二碘化镱不能促进分子间的Barbier反应；最后研究了二碘化钐促进的叠氮化合物与腈的交叉还原偶联反应，一步高收率地制备脒的方法。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。