还原

Acieration Mu hydrogenation the main body of a book has been inspected mainly takes off the nitrogen function, the acieration Mu deoxidation acieration temperature and , deoxidation acieration reaction airspeed, the reaction pressure escaping from nitrogen reaction affects hydrogenation as well as the reaction airspeed azine hydrogenation to acieration Mu catalysator takes off the nitrogen function's.

本文主要考察了碳化钼的加氢脱氮性能，以及碳化钼还原碳化温度，还原碳化反应空速，加氢脱氮反应的反应压力以及反应空速对碳化钼催化剂的吡啶加氢脱氮性能的影响。

Birch Reduction, one of the most powerful synthetic methodologies available to organic chemists, provides a bridge between aromatic and aliphatic compounds and makes a huge arsenal of aromatic derivatives readily available for construction of alicyclic molecules, which are possibly converted into various natural products.

Birch还原是联接芳香族和脂肪族化合物的桥梁，它使许多芳香族衍生物成为合成脂肪族化合物，尤其六元脂环天然产物的起始原料，因此Birch还原是有机合成中很有用的方法。

Carbonyl reductase is a monomeric oxidoreductase that catalyzes the NADPHdependant reduction of a variety of quinones, ketones, and aldehydes. It is widely distributed in the cytoplasm of various tissues of mammalian and non-mammalian species, and is involved in detoxification, physical regulation, as well as in drug metabolism.

羰基还原酶是一类依赖于辅酶NADPH催化各种醌、酮和醛等物质还原的单体氧化还原酶，它们广泛分布于哺乳动物和非哺乳动物各种组织的细胞质中，具有解毒、生理调节和药物代谢等重要功能。

Effects of hydrogen reduction time, hydrogen content and redox circulation on C O oxidation activities of CuO-CoO/Al2O3 and CuO-Ce2O3/Al2O 3 combustion promotors were investigated.

对 CuO-CoO/Al2O3和 CuO-Ce2O3/Al2O3助燃剂受 H2还原时间、还原 H2 含量，以及多次还原-氧化循环处理后对 CO 氧化活性的影响在实验室进行了研究。

The results show that WO_3 can be nitrided in the mixture gas of hydrogen and nitrogen, and ...

结果表明，WO3可以在氢氮混合气中被还原氮化；氮化反应分两段进行；在氢氮体积比(4～5)∶1，反应温度650℃的条件下，WO3可以被还原为产物W2N；在不同氢氮比的混合气中氮化，WO3会生成不同的中间产物WO2和WOXNY，中间产物WOXNY进一步氮化生成W2N要比WO2容易；助剂Ni的加入使氮化反应温度降低了100℃；载体γ-Al2O3的加入使金属氧化物的氮化过程变为一步氮化还原反应。

The mechanics of the oxidation-reduction method and the reduction kinetics characteristic of tungsten trioxide were studied.The oxidation-reduction method in this article is a quite new processs for preparing ultrfme tungsten powder.

本实验所采用的氧化—还原法是一种全新的工艺，是先将三氧化钨还原成钨粉，然后在空气中氧化成三氧化钨后再次还原，如此反复进行多次，则可得超细钨粉。

So, according to the characteristics of reduction of IO-CP, the idea and theory of self-heating reduction of IOCP and a new reduction process in a co-current shaft furnace are developed.

本文根据铁矿-煤球团还原特性，建立了自热还原理论，并在此理论基础上提出了在并流竖炉中进行自热还原的新工艺。

The process in which iron ore pellets are pre-reduced in a shaft furnace and further reduced in an iron bath reactor is a very competitive smelting reduction process.

以球团矿为原料，采用竖炉预还原和铁浴终还原相结合的二步法流程是一种极具竞争力的熔融还原流程。

Kinetics and reduction characteristics of two iron-bearing materials are investigated to understand the self-reduction process as well as to verify some parameters in calculation.(1) The compression strength of wet pellet and dry pellet is kept to 10N/P and 23N/P respectively and the wet pellets impact to 11 frequencies/pellet in the process of pelletmaking.

作为对流程模型某些参数的验证以及对还原过程加深了解认识，本文进行了两种含铁原料—转炉尘泥和铁精矿粉固碳还原实验研究及其还原过程动力学研究，主要研究成果如下：(1)尘泥含碳球团湿球和干球抗压强度为10N／个和23N／个，低于精矿含碳球团，湿球落下强度14次／个，高于精矿球团。

With the existence of additional carbon sources, sodium lactate, sodium propionate or sodium acetate, the faster pH rised, the faster p, p'-DDT dechlorinated, which indicate that the existence of short chain organic substrate supplies sufficient electron donors for the dechlorination process, and p, p'-DDT can obtain electrons more easily during the stage of pH rising.

并且由于p，p'-DDT的还原脱氯与细胞色素氧化酶及辅基FAD有关，外加碳源下p，p'-DDT的缺氧降解多数发生在体系pH值上升的阶段，且pH值上升较快时对应的p，p'-DDT缺氧降解较快，而在无外加碳源的体系中，由于可供p，p'-DDT还原脱氯的电子量限制了p，p'-DDT还原脱氯的速度，未发现上述现象。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。