查询词典 reduction

Microbial Cr reduction, dissimilatory iron reduction, paddy soil, Co-culture experiment

微生物铬还原，异化铁还原，水稻土，混合培养

Taking Shewanella and Geobacter as examples, this paper reviewed three kinds of possible mechanisms of microbial enzyme-catalyzed dissimilatory Fe reduction and its molecular regulation, i.e., direct contact between microbial cell and Fe oxides, siderrophores, and electron shuttling compounds. Many membrane-bound cytochrome proteins are involved in the dissimilatory Fe reduction, forming a complicated regulation network.

以希瓦氏菌和地杆菌为例，本文综述了3种异化Fe还原的酶促反应机制及其分子调控机理：异化Fe还原菌与Fe氧化物直接接触机制、电子穿梭体的作用机制、铁载体作用机制，多种膜蛋白特别是多血红素的细胞色素蛋白参与微生物的异化Fe还原过程，并形成复杂的调控网络。

The mechanism of electrocatalytic reduction, the classification and selection of electrode and catalyst and the effect of temperature, current density and pressure on the selective and Faradaic efficiency of reduction are discussed.

介绍了在水溶性介质中利用电化学催化的方法还原CO2的研究现状：电催化还原机理、电极材料催化剂的分类和选择；综述了温度、电流密度以及压力等对还原选择性和法拉第效率的影响；展望了CO2电催化还原方法的研究方向和应用前景。

The key intermediate 3-methylaminopiperidine was synthesized from 3-methylaminopyridine by two methods,formylation and lithium aluminium hydride reduction or condensation with triethyl orthoformate and sodium borohydride reduction,and then hydr...

以3-氨基吡啶为原料，分别通过甲酰化反应、氢化铝锂还原和原甲酸三乙酯缩合、硼氢化钠还原两种方法得到3-甲胺基吡啶，最后经催化氢化得到中间体3-甲胺基哌啶。

The key intermediate 3- methylaminopiperidine was synthesized from 3-methylaminopyridine by two methods, formylation and lithium aluminium hydride reduction or condensation with triethyl orthoformate and sodium borohydride reduction, and then hydrolysis.

以3-氨基吡啶为原料，分别通过甲酰化反应、氢化铝锂还原和原甲酸三乙酯缩合、硼氢化钠还原两种方法得到3-甲胺基吡啶，最后经催化氢化得到中间体3-甲胺基哌啶。

Result: All the patients were treated percutaneous reduction and obtained good resuld except one patient who needs another small incision to help reduction and bone graft. The preoperative X ray film showed that the B hler angle was 12.6°, Gissane angle was 75°. The postoperative X ray film demonstrated that B hler angle was 38.5°, Gissane angle was 114.5°.

结果： 14侧手术顺利，达到或接近解剖复位，1侧由于中间骨折块未能达到复位要求，辅助小切口复位骨折块。14侧B hler角由术前12.6°增加到38.5°，Gissane角由术前的75°增加到术后的114.5°，手术前、后差异有统计学意义（P.01）。

Lesional and homeochronous normal hips were paired, and acetabular index and AI of lesional and normal hips, before the reduction and in the 3rd, 6th, 9th and 12th month, respectively, after the reduction, were dynamically measured.

按四级功能评价标准判定临床疗效；于复位前、复位后第3、6、9 和12 个月动态测量患、健侧髋关节的髋臼指数（acetabular index，AI）和髋臼深度与宽度比值，并进行相关比较。

Grouping lesional and homeochronous normal hip to pair, dynamic measuring AI and AI in each age groups of lesional and normal hip on before reduction、after reduction 3rd month、6th month、9th month、12th month, describing the characteristics of acetabular development in each age groups on every observation time-points, comparing the difference of lesional acetabular development with normal acetabular physiological development.

并以患侧髋关节与同期健侧髋关节进行配对分组，动态测量各年龄组患儿患、健侧髋关节在复位前、复位后第3、6、9和12个月时的髋臼指数和髋臼深度与宽度比值AI(D/W，描述各年龄组在各时间观察点上髋臼发育的特点，比较患侧髋臼发育与健侧髋臼生理发育的差异。

The article proposes a Rough set concept of impartibility pattern of the properties and their relationships, which is based on the theoryof properties reduction by use of the method of matrixs. The article presents a method of condition property and values of the property reduction.

摘 要：基于属性约简的分明矩阵方法的思想，该文提出了Rough 集不可分明属性模式和属性关系的概念，给出了基于二进制的条件属性约简和属性值约简方法，结果说明，该方法比传统的Rough 集理论中的方法更简便、快捷。

To overcome the disadvantage of ordered reduction which is based on the discernibility matrix as the time complexity is increscent exponential along with the size of decision tables,the judgment theorem with respect to distribution reduction is obtained,and a heuristic algorithm is proposed.

在不一致决策表中，以知识的包含度为基础，将一致和不一致对象分开，定义了一种新的属性重要性；为克服区分矩阵法时间复杂度随系统大小增加而指数增长的缺陷，给出分布约简的数学判定定理，提出了一种求分布约简的启发式方法。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。