还原的

The Key step is the one-potreductive deoxygenation of 〓-unsaturated 〓-tosylhydrazone and reduction of 9-carbonyl with sodium borohydride.

关键步骤是以硼氢化钠为还原剂一步完成α，β不饱和腙的还原脱氧、双键重排以及9—位羰基的还原反应。

This specific preparation methods including: parathion of the initial reaction in acid and zinc metal in the common under redox reaction, a product of the reduction of parathion - parathion, with the sodium nitrite in the cold under diazotization reaction, and bovine serum protein tyrosine on the o-hydroxy combination of the adult immune original and immune rabbit polyclonal antibody preparation.

本发明制备方法具体包括：以对硫磷为反应初始物，在酸和金属锌的共同参与下进行氧化还原反应，得对硫磷还原产物对氨基对硫磷，再与亚硝酸钠在低温下进行重氮化反应后，与牛血清蛋白酪氨酸上羟基的邻位结合，制备成人工免疫原，并免疫新西兰大白兔制备多克隆抗体。

In the presence of the combination of sulphuric and phosphoric acid, with sodium diphenylamine sulfonate as the indicator, standard solution of potassium dichromate was used to titrate total iron value.

试样以盐酸溶解后，在酸性介质中，先以氯化亚锡将三价铁大部分还原为二价，然后在钨酸钠指示下，再以三氯化钛将剩余的三价铁还原为二价，过量的三氯化钛以重铬酸钾氧化消除干扰，在硫磷混合酸存在下，以二苯胺磺酸钠为指示剂，用重铬酸钾标准溶液滴定全铁量。

The changes of total reducing substances, oxalate extractable Fe, dithionite citrate bicarbonate extractable Fe and phosphorus adsorption in oxic and anoxic layers of two paddy soils during 6 week flooding were examined under laboratory conditions.

在实验室条件下对两种水稻土在为期 6周的淹水过程中，其氧化层和还原层土壤中还原物质总量、草酸盐可提取铁、连二亚硫酸钠-柠檬酸-碳酸氢钠可提取铁和磷吸附的变化进行了研究。

In ChapterⅤ, the asymmetric reduction of prochiral ketones using borane as the reagent catalyzed by chiral dysprosium catalyst were described.

第五章主要研究了手性镝试剂催化下硼烷对潜手性酮的不对称还原反应，结果表明异丙氧基镝对硼烷还原酮有明显的催化作用。

The facile methods for selective generation of〓(n= 1, 2, 3) were reported.

系统地研究了〓的还原反应，初步总结了一些还原〓的规律。2、开发了水相化学方法选择性地合成〓(n=l，2，3)负离子。

When TiP2 powder and carbon grain are mixed and pressed into globosity, the reduction is either gas-solid or solid-solid reaction.

升高温度有利于还原进行，钛氧化物的开始还原温度随气相中的CO分压降低而降低。

The results show that the electrochemical deposition plays a dominant role in the early stage of initial deposition coating, then reduction reaction and the electrochemical mechanism of hypophosphite coexist, finally reduction reaction of hypophosphite gradually play a dominant role.

结果表明，镀层初始沉积最先是电化学机制占主导地位，然后是次磷酸盐的还原作用机制和电化学机制并存，最后逐步过渡到以次磷酸盐的还原作用机制占主导地位。

Methods The cell growth inhibiting rate, LDLR activity in acute leukemia patients and the influence of HMG-CoA reduct ase inhibiter atorvastatin on leukemic cell proliferation were detected by MTT method. HMG-CoA reductase activities of leukemic cells were analysed by ultraviolet spectrophotometry.

用四氮甲唑蓝比色法检测AL患者的细胞生长抑制率、LDLR活性、HMG-CoA还原酶抑制剂阿托伐他汀对白血病细胞增殖作用的影响；紫外分光光度法测定白血病细胞HMG-CoA还原酶活性。

The results show that the reduction of CO_2 is anone-eletron irreversible process by diffusion control which generates an anion radical.

结果发现，CO_2的还原是受扩散控制的单电子不可逆还原过程，对应着CO_2在电极表面得到电子生成了CO_2阴离子自由基CO_2~

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。