英语人>网络例句>by means of 相关的网络例句
by means of相关的网络例句

查询词典 by means of

与 by means of 相关的网络例句 [注:此内容来源于网络,仅供参考]

First, a chlorinator was self-designed in this paper, and dichloride of 2-methyl-1-propene was synthesized by 2-methyl-1-propene reacted with chlorine fast in this reactor. By means of the Orthogonal Experiments design and single factor experiments, the influence of several reaction variables on the yield were examined and the optimum reaction conditions under the intervallic operation were obtained, the yield and selectivity of dichloride of 2-methyl-1-prop-ene were more than 65% and 80% respectively. Second, the preparation of 2-methylene-1, 3-propanediol, which dichloride of 2-methyl-1-propene reacted with alkali was investigated. By means of the Orthogonal Experiments design and single factor experiments, the influence of several reaction variables on the yield were examined and the optimum reaction conditions under the intervallic operation were obtained, the conversion of dichloride of 2-methyl-1-propene was 100%. Moreover the preparation of MPO, which 2-methylene-1, 3-propanediol reacted with hydrogen, in presence of Al_2O_3-Pd catalyst, was gotten, and the product was appraised.

本文在氯化反应过程中,自行设计制作出了氯化管式反应器,在该反应器中异丁烯和氯气迅速混合反应生成二氯异丁烯,根据该氯化反应特征利用正交试验和单因素试验考察了有关因素的影响并优化得到了最佳工艺条件,二氯异丁烯的总收率达65%以上,选择性达80%;接着,对二氯异丁烯进行水解反应制得了2-甲烯-1,3-丙二醇,讨论了相关因素对水解反应的影响,并通过正交试验和单因素试验得到了较佳工艺条件,二氯异丁烯的转化率达100%;同时还对制备的2-甲烯-1,3-丙二醇在常压下采用三氧化二铝负载钯催化剂催化加氢得目的产物MPO,并对产品进行了鉴定,从而打通了整个工艺路线。

By means of equilibrium outcome analysis of merger game, it gives the decision basis that rational firm strategically selects merger model and analyze the interests conflict between consumers and firms and government under the equilibrium merger model in the imperfect information analysis, by means of the prior probability of firm marginal cost described by continuous distribution function, the passage clarifies the relations between pre-emptive merger with rational expectation and equilibrium merger model, in the vertical relation industry.

在对不完全信息下企业兼并博弈的分析中,通过以连续分布函数形式描述的企业边际成本的先验概率,本文给出了具有纵向关系的产业中,具有理性预期的先置兼并作用及与均衡的兼并模式之间的关系。

On this basis a design scheme of the database for SCADA based on the component object model is presented, in which the content and background of IEC 61970 standard is introduced first, then some different component model are assayed , then a design scheme of the database for SCADA based on the component object model is presented, the foreground application of SCADA is connected with the database by components.The new model have some advantages: system have disrelation with develop language ,the peculiarity of COM make the system fit in with different apply program developed with different language;(2) the system can be modified and upgraded easily by means of upgrading the component modules;(3) the system can be enlarged easily by means of adding the new component modules without quiet amendment in old system.

为此,本文介绍了一种基于组件对象模型的SCADA数据库系统设计方案,文中首先介绍了IEC61970标准的内容及产生背景,分析了几种不同的组件模型,在此基础上,提出了一种基于COM组件技术的SCADA数据库设计及访问模式,在此模式下根据SCADA数据库不同的功用划分了不同的组件模块,利用组件连接数据库与SCADA前台应用,基于组件技术的SCADA数据库设计有以下一些特点:(1)与语言无关性,COM的特性决定了此系统上可以应用不同语言开发的应用程序;(2)系统易修改及维护,用户可以通过更新组件模块的方式修改及维护系统;(3)系统易扩展新的功能,用户可以通过开发新的组件方式将新的应用与原系统结合,而不用对原系统做很大的修改。

A method is provided whereby data elements selected and identified by means of a signature extracted from a mathematically regular expression of data can be rendered through an appropriate language translator of interest to the querier by means of a system which is adapted to access elements through reference by signature.

提供了一种方法,利用从数据的数学常规表达式中提取特征标记,所选择和识别的数据元素,可以通过适当的语言翻译器后呈现给查询者,这种系统适于通过特征标记引用存取数据元素。

The research is carried on from four aspects. One is, based on answering the above open problem on a finite dimensional Euclidean space by means of partially ordered theory, to research the existence of solutions, global error bounds of proximal solutions and sensitivity of parametric unique solutions and present a class of variable-parameter three-step iterative algorithms for generalized set-valued variational inclusion problems by using - resolvent operator of set-valued mapping.Two is to consider the convexity, closedness and boundedness of the solution set of general set-valued variational inclusion problems and the sensitivity of the parametric solution set by means of graphical convergence theory. Three is to discuss directly the existence of solutions by using analytical methods for set-valued mixed quasi-variational-like inequalities and suggest a class of direct variable-parameter three-stepiterative algorithms for solving generalized set-valued variational inclusions.

研究分有三个方面:一是借助于偏序理论在有限维欧氏空间中解决了上述公开问题,在此基础上利用集值映射的η-预解算子,研究了广义集值变分包含问题解的存在性、逼近解的全局误差界、参数唯一解的灵敏性,并提出了一类变参数三步迭代算法;二是借助于图收敛理论研究了一般集值变分包含问题解集的凸性、闭性和有界性以及参数解集的灵敏性;三是用分析的方法直接讨论了集值混合拟类变分不等式问题解的存在性并提出了一类求解广义集值变分包含问题的直接变参数三步迭代算法。

Therefore, we decide to assemble column one by one by means of piece assembly, and assemble roof trussing by means of section assembly later.

即采用较短起重臂吊柱,接长起重臂吊屋架,因此,决定先分件吊装柱、再用节间吊装法吊装厂房全部构件。

The authentication by means of ISO9000-2001's grade quality assurance setup of corporation and effectively runs causes that corporation produce technique level and the quality grade all dwells domestic colleague's trade first place , the rich special subject of technical personnel pestles an organization , yet each year wholly continuously puts out the fresh produce to meet the actual and latent demand that the vacuum tube produce was adjust in the wide door in the past few years , the different main economic target of corporation all increases by degrees with velocity over 30%, and the multiple items produce captures the province grade scientific and technical payoffs reward , and that the business is awardded the high and new technique business name corporation in Liaoning shall steadfast that the earth with shopper is fundamental , and administer with continuously to innovate by means of the scientific knowledge , and in the interest of the marketplace suppling the service of international quality produce and classic with all one's heart , to supply the well-developed quality of performance the dependable high grade produce in the interest of consumer is the target that the corporation was pursue .

公司通过ISO9000-2001级质量保证体系的认证和有效运行。使得公司产品的技术水平和质量档次均居国内同行业首位,技术力量雄厚的专业研发机构,每年都不断推出新产品来满足广大可户对电子管产品的现实和潜在的需求。近年来,公司各主要经济指标均以30%以上的速度递增,多项产品获省部级科技成果奖励,企业被授予辽宁省高新技术企业称号。公司将始终不渝地以顾客为根本,通过科学管理和不断创新,竭诚为市场提供国际品质的产品和一流的服务。为用户提供性能先进质量可靠的优质产品是公司追求的目标。

The cytoarchitectonic organization ofprojections to the insular cortex and the amygdala from the parvicellular ventroposterior nucleus of the thalamus andtheparabrachial nucleus in the rat was investigated by means of horseradish peroxidase -tracing technigue; The relationship of origins of afferents to the insular cortex and the amygdala from the PBN was studied by using the retrograde transport of two fluorescent tracers; Thesynaptic connections of axonal terminals with the neuronsof the PBN were observed by means of electron microscopy.

GI主要位于岛皮质的尾侧部,DI和AI主要位于首侧部;VPpc是位于丘脑腹后核和内侧丘系之间的带状区,所含细胞较小(平均14u),其内侧部称为腹后内侧核小细胞部,其外侧部称为腹后外侧核小细胞部;PBN位于小脑上脚周围,由三部分组成:外侧亚核、内侧亚核和Kollikor-Fuse核,其中,PBl被分为7个区、PBm被分为3-4个区;杏仁核主要由三个细胞群组成:皮质内侧核群、基底外侧核群和中央核,中央核又有内侧部、外侧部和外囊部之分。

For 9 pyrazole compounds, their geometry and electronic structures were analyzed by means of natural bond orbital theory; their reactivity was analyzed by electrostatic potential distributions, heats of formation and Bader density were also calculated. After that, detonation velocities and Chapman-Jouguet pressures of these compounds were given by means of VLW equation.

在最稳定几何构型基础上,基于自然键轨道理论,分析了稳定结构的成键情况和吡唑环上的共轭性;用静电势图分析了吡唑化合物的反应性;理论估算了9种化合物的标准气态生成热和Bader密度;最后采用VLW方程计算了这些化合物的爆速、爆压。

A series of sulphonated SBS were achieved by reacting SBS blockcopolymer with sulphuric acid, meanwhile, the blends of PVC andsulphonated SBS were studied. By means of strength capabilityexamination and DSC analysis, it was found the miscibility wasincreased after SBS was sulphonated.2 The chemical grafting of styrene and PVC membrane2.1 The reaction condition of graftingBy means of the swelling and seepage of Styrene to PVC film,St was grafted onto PVC film by the initiation of BPO .

采用硫酸对热塑性弹性体SBS进行磺化,得到不同磺化度的产物,并对其与PVC的物理共混进行了研究;通过力学性能及DSC测试,发现SBS磺化后增加了与PVC的相容性(来源:Af2a2a2BC论文网www.abclunwen.com)。2 苯乙烯与聚氯乙烯膜的化学接枝2.1 苯乙烯与聚氯乙烯膜接枝条件利用苯乙烯对PVC的溶胀渗透,在过氧化苯甲酚的引发下发生接枝共聚反应。

第3/100页 首页 < 1 2 3 4 5 6 7 8 9 ... > 尾页
推荐网络例句

Life. But the intrinsic way of the Internet by wire confines accessing and using of the network information.

然而,Internet固有的有线连接方式大大限制了人们对网络信息的访问和使用。

I have a strong persuasion that this is true .

我坚信这是正确的。

Baby One More Time, outfitted her in full Catholic-school regalia, and sent her well on the way to becoming an international sex symbol.

宝贝再一次,她的配备充分天主教学校雷加里亚,并给她很好的道路上成为国际性的象征。