还原

The process of oxidizing; the addition of oxygen to a compound with a loss of electrons; always occurs accompanied by reduction.

氧化过程；化合物失去电子获得氧的过程；总伴随着还原作用而发生。

The cationic polyelectrolyte P (AM-DMDAAC with a certain scope of molecule weight was synthesized by controlling synthesis conditions. P is a kind of functional additive for carbon paper designed especially for proton exchange membrane fuel cell. The kinetic behavior of copolymerization of AM and DMDAAC initiated by Na2S2O8-Na2SO3 redox system in aqueous solution was studied.

通过控制合成工艺条件，合成了具有一定相对分子质量范围的阳离子聚电解质，作为质子交换膜燃料电池专用碳纸功能性添加剂，研究了过硫酸钾亚硫酸钠氧化还原引发体系水溶液聚合的动力学行为，得到的速率方程为：Rp=Kp［K2S2O8］0.55［Na2SO3］0.56［M］1.14。

Chapter three focuses on the application of the Baylis-Hillman adduct in organic synthesis and some new exploration was made.

第一章对钐试剂促进的有机反应和Baylis-Hillman反应在有机合成中的应用作了简要介绍；第二章研究了二碘化钐促进的还原消除反应；第三章研究了Baylis-Hillman加成物参与的立体选择性的转化反应。

The main body of a book is adopt to follow different condition of admeasurement in vitro to active effect of stem tumour mustard hydrogen nitrate reductase.

本文采用离体法测定不同条件对于茎瘤芥硝酸还原酶活性的影响。

METHODS: Nitrate reductase method was used to detect the NO content of the patients on the admission day, the 3rd day, 7th day, and 21st day after onset. The results were compared with that of the control group.

采用硝酸还原酶法分别测定研究对象入院时、发病后的第3，7，21天的一氧化氮含量，并与健康体检者进行对照。

So it is a species of Bacillus.But the spore formed by this antagonistic bacterium can not make the sporangium swollen,and the parasporal crystal can not be formed. The antagonistic bacterium can be dyed equably by Methylene Blue.It can grow in pH5.7 culture medium and 7% NaCl. It is an aerobe,it can not grow without oxygen.

该细菌产生的芽孢不使孢囊膨大，不形成伴孢晶体，美蓝染色均一，可在pH5.7的培养基中生长，可在7％氯化钠中生长，且该细菌为好氧菌，在厌氧条件下不生长，能水解淀粉和还原硝酸盐。

This article mainly reviewed the discovery and the research course of natural phosphine ,namely,how phosphine coming into being,and whether phosphine being universal existed gas in natural environment such as in aerosphere,biosphere,hydrosphere.

磷化氢是剧毒的、十分活泼的无色气体，具有强的还原性，在光照、空气等作用下，极易转化为磷的其它形态。

Stepping on the gentle music,first of all,we'd like to present you the Evening Dress series,evening dresses can always bring us infinite imaginations,they're so charming and graceful under the moonlight,drawing quietly the spirits of the moonlight, carrying with the graces accumulated during the day,the evening dresses,with the most mysterious style,will allow the female to display a sort of unique charming power,and a sort of special affectionateness.

極具節奏感的音樂，給人以一種轻松，自在的心情，接下來為大家呈现是休閑装系列，清纯质朴、朝气蓬勃的休闲装在平和中演绎着白天的简约和黑夜的沉醉。工作之余，在缓解压力的同时，它还原生命本身的光华，于随心随性处，更多一份天马行空的灵动与行云流水的洒脱。

Now, technology of EGR and aftertreatment are known as the two effective methods to purify NO_x emission which are available for diesel.

目前，废气再循环和后处理催化还原被公认为是可以应用在柴油机上比较有效的净化NO_x排放技术。

Selective catalytic reduction of NOx is one of important routes to control of air pollution in city.

用选择性催化还原的方法去除氮氧化物对于控制城市空气污染有着重要的意义。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。