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reduction相关的网络例句

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与 reduction 相关的网络例句 [注:此内容来源于网络,仅供参考]

The experiment and the research indicate that:(1) Through the Hot-Continuous-Rolling production technics under small reduction ratio of 4.04 and 5.08, the rectangular continuous-casting billet of 235×265mm can be used to produce big size steel stick of Φ140mm and Φ 125mm whose macrostructure and mechanical properties meet the standards, this technics is viable;(2) This rolling technics can make the deformation penetrate to the center of the billet by low temperture and low velocity and big roller diameter and large reduction quantity at every pass and optimum design and arrangement of rollers, which is the key of Hot-Continuous-Rolling technics under small reduction ratio;(3) The sending technics used in Xining Special Steel Co.,Ltd can not use waste-heat of billet adequately, but the sensitive temperature section of A1N or sulphides or inclusions separating out is avoided, creating a favorablecondition for insuring good surface quality of final rolled steel;(4) The Hot-Continuous-Rolling technics under small reduction ratio has a close relationship with the billet quality control and the hot sending process control and the cooling control after rolling.

通过实验研究表明:(1) 235×265mm矩形连铸坯分别采用4.04和5.08的小压缩比热连轧生产工艺,所生产的Φ140mm和Φ125mm的大规格棒材,其低倍组织和机械性能均符合标准要求,该工艺是可行的;(2)本实验所采取的低温低速、大辊径大道次压下量轧制工艺加上轧辊孔型的优化设计与配置,可以使加工变形渗透到铸坯的中心,这一点是实现小压缩比热连轧生产工艺的关键;(3)西宁特钢在红送过程中虽然铸坯余热未能得到充分的利用,但是有效地避开了A1N、硫化物的析出及夹杂物偏析的敏感温度区,为保证最终轧材良好的表面质量创造了有利的条件;(4)小压缩比热连轧生产与铸坯质量控制,热送过程控制以及轧后冷却控制密不可分。

This study uses the soil parameter reduction coefficients to model the seismic pile responses affected by liquefied soils. One dimensional wave equation analyses were conducted for the solutions. Based on the bore-hole data and nearby seismic record, the soil parameter reduction coefficients of liquefied layers can be obtained through a pre-analysis for liquefaction potential of the site. The reduction coefficients were used to reduce the soil modulus for liquefied soils, and the lumped mass analysis is performed to obtain the free-field response of the site. The ground deformations are superimposed onto the pile elements for discrete wave equation analysis, and the non-linear pile responses can be simulated through the modified Bouc-Wen model. Thus the deformations and failure mechanism of the pile are able to investigate.

中文摘要本研究之土质参数折减系数模式,系以一维波动方程模拟地盘液化状态下之桩基础动力反应,依据现场土层钻探资料与邻近测站之地震纪录,由土壤液化潜能评估法配合日本相关规范求得液化土层之土质参数折减系数,以此系数对土壤强度模数进行折减,并使用集中质块法求取自由场之地盘液化反应,再以此为前置解作用於桩基础之波动方程求解,桩身刚度以简化之Bouc-Wen模式模拟其非线性行为,以了解液化地盘内基桩之变形行为与破坏机制。

These advantages include quality improvement, cost reduction, waste reduction, maintainance expense reduction, viscosity less than 10,000 centipoise of the paint, heating for curing the coating being no longer necessary etc..

以减少大气污染为唯一目的的超临界CO2涂料技术,随着其在技术上的不断成熟,它所具有的其它优点也为人们所认识。

It is demonstrated that the chiral quaternary ammonium salts catalysts exhibit promising catalytic properties for the substrate. Part III: The synthesis and the characterizing of the macroporous aminomethyl resin-supported cinchona alkaloid complexes and the study on its catalytic properties The part consists of two subsections. the macroporous aminomethyl resin -supported cinchona alkaloid complexes were synthesized by the stuff (cinchonine, quinine and macroporous aminomethyl resin). Their structures were characterized by means of elemental analysis, XPS, TG/DTA; the chiral polymer-supported complexes were first used as catalysts for the reduction of ketones. Their catalytic properties for the reduction processes were investigated. The comparison of the products e.e., the conversion of the substrate among different reduction processes was employed with determined by HPLC. The effects of the time, the temperature, the ratio of catalyst to substrate, reaction solvent as well as the recycle times were also discussed.

第三章聚-4-氨甲基苯乙烯负载金鸡纳碱金属络合物的合成与表征及其不对称催化性能研究本章分为两节,以辛可宁和奎宁及聚-4-氨甲基苯乙烯为原料,合成了4种聚-4-氨甲基苯乙烯负载金鸡纳碱络合物催化剂,并对它们的结构用元素分析、X-射线光电子能谱、TG/DTA等几种测试手段进行了表征;首次将所合成的手性高分子负载的金属络合物用于催化芳香酮不对称还原反应,详细研究了所得的手性高分子负载的金属络合物对不同底物的催化性能,用HPLC等分析手段定量检测了还原过程的底物转化率及其产物对映异构体选择性,并考察了反应时间、反应温度、催化剂和底物投料比、反应溶剂和循环次数对催化性能的影响。

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。

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