查询词典 electrolytic reduction

Through testing the effects of temperature, time and so on, better parameters of roasting reduction method can be shown as follows: excess coefficient of carbon 0.8-0.9, reduction temperature 1 150℃, reduction time 50 min.

通过考察温度、时间等工艺因数的影响，得到了焙烧还原法合理工艺条件：碳过量系数为0.8-0.9、还原温度1150℃、还原时间50min。

At first, the protections and circuit breakers are taken as conditional attributes and faulty region as decision-making attribute, various faults are investigated and decision table is established; then by use of attribute reducing method based on cognizable matrix and information entropy the optimal attribute reduction combination is extracted; finally, by means of the reduction decision table formed by optimal attribute reduction combination, the naive Bayesian networks model is built and the nodal probability is trained.

首先以保护、断路器作为条件属性，故障区域作为决策属性，考察各种故障情况并建立决策表，然后利用基于可辨识矩阵和信息熵的属性约简方法提取最佳属性约简组合，最后以最佳属性约简组合形成的约简决策表建立朴素贝叶斯网络模型，并对节点概率进行训练。

As a result of half registers requirement, the 24.6% area reduction for high order (126th-order) FIR filter is obtained, which result in 15.8% area reduction for the 4-stages decimator (20.9% area reduction for 3-stages decimator).

由於只需使用一半的储存元件，本架构相对於直接结构摺叠架构而言，可使降频器里的高阶有限脉冲响应滤波器减少24.6%的矽面积，进而达到整体使用四个阶段降频器15.8%的面积节省(对於三个阶段降频器，整体面积则可减少20.9%)。

Reduction of FA is the common synthetic method of THFA. These methods include hydrogenation in high-pressure,reduction by hydroborates and reduction by dithionite.

在利用基因工程菌表达的丝氨酸羟甲基转移酶酶法制备L-丝氨酸的过程中，SHMT需要四氢叶酸作为辅酶。

These methods include hydrogenation in high-pressure,reduction by hydroborates and reduction by dithionite. This article studied these methods, especially optimized the technology of hydrogenation in normal pressure and reduction by hydroborates.

研究了常压氢化法、加压氢化法、硼氢化物还原法及连二亚硫酸钠还原法等制备四氢叶酸，并优化了常压氢化法、硼氢化物还原法的工艺条件。

To prepare THFA from folic acid , catalytic hydrogenation and high-pressure hydrogenation, reduction by borohydride and reduction by dithionite were investigated. Especially, the technology of catalytic hydrogenation and reduction by borohydride were optimized.

本文研究了常压氢化法、加压氢化法、硼氢化物还原法及连二亚硫酸钠还原法制备四氢叶酸，并优化了常压氢化法、硼氢化物还原法的工艺条件。

The transition metal catalysis reduction, hydride reagents reduction, sodium dithionite reduction and bioreduction ware discussed.

综述了近年来α，β-不饱和羰基化合物α，β-碳碳双键和碳氧双键的选择还原研究进展，讨论了过渡金属催化还原、氢化试剂还原、连三亚硫酸钠还原以及生物还原。

And aluminous reduction of output, it is early at the beginning of July aluminous price 19000 yuan / ton over when, 20 backbones of domestic electroanalysis aluminous enterprise gives out " of proposal of " of associated reduction of output, inside a month since affirmatory this day 5%-10% of progressively reduction of output.

而铝的减产，早在7月初铝价19000元/吨之上时，国内20家骨干电解铝企业就发出联合减产"倡议书"，承诺即日起一个月内逐步减产5%-10%。

Accordingly,two rules for intent reduction are proposed.If a concept node has only one father concept node,then the intent reduction is formed by the difference sets of its attributes set and its father's attribute set.If a concept has several father concepts,then the intent reduction is formed by two attributes inherited from any two different fathers.

相应地提出了两条内涵缩减的规则：如果一个节点只有一个父节点，那么其内涵缩减来源于它的内涵与父节点内涵的差集；如果一个节点有两个或两个以上的父节点，那么其内涵缩减来源于任意两个父亲节点属性的并集。

Results: of 135 cases, reduction a shot 75 patients (55.5%),reduction again after intermittent insufflation , massage with hands or intramuscular injection with 654-2 48 patients (35.5%), failure reduction 12 patients(9%).

结果：本组135例中一次注气成功整复75例（55.5％），进行间歇性注气、辅助手法按摩或肌注654－2后成功整复48例（35.5％），不能整复12例（9％）。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。