还原的

1 A mediator modified carbon glassy electrode (NMP-GC electrode) is made by immobilizing N-methyl phenazine sulfate as the mediator on the surfase of carbon glassy electrode, which successfully catalyzes the oxidation of NADH and reduce the over-potential of NADH almost 700mv.

采用N-甲基吩嗪硫酸酯作为氧化还原介体，制作了NMP修饰的玻碳电极，将该电极用于NADH的电催化，实现了NADH在NMP-GC上的可逆氧化还原，并且将NADH在电极上的过电位降低了700mv左右。

However, it is hard to prepare high valent Mn complexes with ligand with only neutral chelating nitrogen atom of two dpa arms in 〓. In order to get a Mn dimmer complex with high oxidation states of manganese to increase the possibility of storing more oxidizing equivalents necessary to oxidize water evolving oxygen, some N atoms are replaced by anionic phenolate groups.

本文以高价金属的稳定、氧化还原性能的改善、各金属离子之间联系的增强等作为主要研究内容，来改进以往模型中金属价态较低，氧化还原电位高，不利于形成氧化活性中间体；多核配合物的研究较少，且各金属活性中心相互协同作用弱等问题。

Discussions are made on dust-free collection of reducing slag site of magnesium production with Pidgeon process and on process of making aerated concrete block taking magnesium reducing slag as main raw material.

探讨了"皮江法"炼镁的还原渣现场无粉尘收集和以镁还原渣为主要原材料生产加气混凝土砌块的工艺，采用该工艺生产的加气混凝土砌块性能符合GB 11969—1997《蒸压加气混凝土砌块》的要求。

Through the thermodynamic calculation of the reaction that aluminum and magnesium reduce anhydrous scandium chloride molten salt to prepare aluminium-magnesium-scandium master alloy, we got that the standard equilibrium constant of the reaction is 1.074 ×10~(19), and the experimental equilibrium constant of it is approximately 6.874 × 10~(14)under around 1200 K and 1 standard pressure, which demonstrate that the reaction can take place and proceed thoroughly.

通过铝镁热还原无水氯化钪熔盐制备铝镁钪中间合金反应的热力学计算，得出：在1200K左右温度，1标准大气压下，该反应的标准平衡常数K为1.074×10~(19)，经验平衡常数K′约为6.874×10~(14)，这说明铝镁热还原无水氯化钪熔盐法制备铝镁钪中间合金的反应能够进行，而且进行的很彻底。

The alloy catalyst was found to be unstable in the acidic solution because of the electrochemical and chemical dissolution of the catalyst.

发现在酸性溶液中，钯铁合金催化剂对氧还原反应的催化活性不稳定，原因是钯铁合金催化剂在酸性溶液中发生电化学/化学溶解；在碱性溶液中，覆盖在电极表面的钯铁合金催化剂的质量及电化学活性面积在电化学扫描过程中不发生明显变化，保持对氧还原反应的催化活性，证明钯铁合金催化剂在碱性介质中非常稳定。

These results indicated that the increasing of the nitrate reductase activity stimulated flower-bud to pass during physiological and moephological differentiation stage. The decreasing of nitrate reductase activity and the increasing of ammoniacal nitrogen content stimulated the plants to blossom.

表明硝酸还原酶活性在花芽生理分化期至形态分化期的升高有利于促进花芽的转化和形成；形态分化后期至初花期，硝酸还原酶活性的下降，氨态氮含量的上升有利于促进开花。

The metabolism and succession of microbial population took place ceaselessly during the fermentation and led to microbial polymorphism which mainly presented as anaerobe,methane bacteria,caproic acid bacteria,lactic acid bacteria,sulfate reducing bacteria,and nitrate reducing bacteria etc.

窖泥糟醅是发酵过程微生物栖息的生态环境，其中微生物种群随发酵过程的进行而不停地演替和代谢，具有明显的多态性。其微生物种群的多态性主要表现为厌氧异氧菌、甲烷菌、己酸菌、乳酸菌、硫酸盐还原菌、硝酸盐还原菌等。

The Co-culture experiment and slurry experiments were applied to two paddy soil samples, which from Sichuan and Jiangxi provinces. The concentration varying of Crand Fe was measured in the course of incubation to study the chromate reducing capability of microbe and effect of chromate on dissimilatory iron reduction .

采用四川和江西水稻土为供试土壤，通过接种土壤微生物的混合培养及土壤悬液培养试验，测定厌氧培养过程中Cr和Fe的浓度变化，研究了不同浓度铬酸盐的微生物还原能力及不同铬酸盐浓度下氧化铁的还原能力。

The illicit synthesis of this compound has been achieved most commonly by the reductive amination of phenyl-2-propanone 2, by the Leuckart formamidation of 2 followed by hydrolysis or by the reduction of ephedrine or pseudoephedrine 3 with hydriodic acid and red phosphorus.

此化合物非法合成的方法有，通过1-苯基-2丙酮的还原胺化作用；通过1-苯基-2丙酮的洛卡特氐反应后进行水解生成；在红磷、氢碘酸的参与下，通过还原麻黄素或伪麻黄素合成。

The UV-vis and redox data indcated that the molecular plane was destroied by meso ethyl.λ〓 hypsochromic 52 nm and W〓 increase. Redox potentials increase, too.

染料的UV-vis吸收光谱和氧化还原电位结果表明中位乙基的引入破坏了染料分子的平面性，使得染料的λ〓蓝移52nm，半峰宽增大；氧化、还原电位均升高。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐