查询词典 Chain Reaction

And it has analyzed the present situation and the evolvement trend of the developing of information industry chain, figured out that modern information service industry is taking shape, it still has a series of problems such as the unreasonable industry chain construction, the low capacity of core value creativity, the poor industry chain cooperation, the unbalanced industry chain value distribution, and the weak industry chain extension ability.

然后分析了国内外信息服务产业链的现状和演变趋势，指出我国信息服务产业链虽然逐步形成，但还存在着产业链结构不合理、核心价值创造能力低、产业链协作程度低、产业链价值分配不平衡、产业链延伸能力弱等问题。

From the experiment discovered for the first time the dimethyl ether may substitute CO to take the chain-carrying agent of the peroxy free radical chemistry amplifier system, and optimized the CH_3OCH_3-NO-HO_2 chemistry amplifying system determination condition, the CH_3OCH_3 best density is 1.876 ppmv, the NO best density is 1.3ppmv, and obtained this method chain length CL=124, 5 parallel determinations densities of HO_2 are the 44.0pptv, the relatively standard deviation is smaller than 4%; Although chemistry box model computed result indicated the dimethyl ether, the ethene, the propene and the ethanol all can take the chain-carrying agent of the peroxy free radical chemistry amplifier system, and their simulation chain length all grows up compared to the CO-NO-HO_2 chemistry amplifying systems, but experiments proved the ethene, the propene and the ethanol have not suit the chain-carrying agents.

首次从实验上发现二甲醚可以替代CO作为过氧自由基化学放大系统的链传递试剂，并优化了CH_3OCH_3-NO-HO_2化学放大系统的测定条件，CH_3OCH_3的最佳浓度是1876ppmv，NO的最佳浓度为1.3ppmv，并得到了这一方法的链反应长度(CL=124)，5次平行测定浓度为44.0pptv的HO_2自由基，相对标准偏差＜4％；虽然化学盒子模式计算结果表明二甲醚、乙烯、丙烯和乙醇都能作为过氧自由基化学放大系统的链传递试剂，并且它们的模拟链长都比CO-NO-HO_2化学放大体系的链长大，但是实验证明乙烯、丙烯和乙醇不适合作为过氧自由基化学放大系统的链传递试剂。

It discusses the forming of the competitive advantage, cost advantage and diversity advantage of the enterprise under the management of the value chain, as well as the operation chain-the basis of the value chain. From the angle of the combination of funds flow, value flow and information flow, the article also researchs the cost of the enterprise operation and its motivation, which lay a foundation for the optimization of the operation chain and the reducement of the operation cost together with the realization of the optimization of the inner value chain of the enterprise.

本论文从企业竞争战略的视角，对企业竞争战略与企业价值链进行系统分析和深入研究，探讨价值链管理环境下企业竞争优势的形成，研究价值链环境下的企业成本优势和差异化优势，对构成价值链的基础——&作业链&进行分析；从资金流、价值流和信息流有机结合的系统观点，研究企业的作业成本，对企业成本动因从战略层面上进行分析，为优化企业&作业链&，降低作业成本，实现企业内部价值链优化奠定了基础。

It also constructs content system of enterprise knowledge value chain management based on driving model of enterprise knowledge value and method system of enterprise knowledge value chain management grounded on strategy of enterprise knowledge value chain,"enterprise knowledge value chain management little car" and performance evaluation of enterprise knowledge value chain management.

最后，论文提出了企业知识价值的驱动模型，并以此为基础构建了企业知识价值链管理的内容体系和以企业知识价值链策略、&企业知识价值链管理小车&和企业知识价值链管理绩效评价为主要内容的企业知识价值链管理的方法体系。

This article has analyzed the construction supply chain partner latent driving influence, the definition and the applicable scope as well as introducing some elementary theories about the construction supply chain. Then it has established the index system of selecting supplier partner in construction supply chain, In this foundation it has analyzed the present stage construction supply chain partner choice method, and brings forward the supplier selection of supply chain management on the basis theory of gray relevancy model.

本文先介绍了关于建筑供应链管理的一些基本理论，提出了基于总承包商的建筑供应链合作伙伴的定义，并分析了建筑供应链合作伙伴的潜在驱动力、定义及适用范围，然后建立了建筑供应链合作伙伴评价指标体系，在此基础上分析了现阶段建筑供应链合作伙伴的选择方法，并提出了基于灰色关联度来选择建筑供应链合作伙伴的模型。

This text took the basic concept of supply chain interruption risk, the reasons and results of breaks off from the supply chain, and guard against to supply chain break off those several aspects to commence, through reading related books, and summary standpoints owned by the experts and the scholars than get such conclusion: The supply chain interruption risk is the problem that the very tough and can not be avoid to the supply chain and its business enterprise node.

本文从制造业中供应链管理实施的必要性以及困难、生产原材料产生中断的原因、生产企业选择供应商的标准方法，以及制造业供应链中断风险的防范等几方面入手，通过回顾2002年美国西海岸码头工人罢工事件，分析此次事件中遭受影响的制造企业，特别是日本丰田汽车公司应该采取的防范措施，得出这样的结论：制造业的供应链中断风险是制造商在管理和决策中十分棘手却又不可回避的问题。

First, the precursor polymer with azobenzene groups on main-chain was obtained by condensation polymerization between 4,4'-dihydroxyazobenzene and N,N-(2-bromoethyl)aniline through Williamson reaction. Then the azo polymer containing azobenzene groups both on main-chain and side-chain was prepared through an azo-coupling reaction between the precursor polymer and the diazonium salt of 4-nitroaniline.

设计并合成了一种新型的主侧链均含偶氮生色团的聚合物，首先通过4，4'-二羟基偶氮苯与N，N-二溴乙基苯胺之间的Williamson反应缩聚得到主链含偶氮苯基团的先驱聚合物，再通过重氮偶合反应得到目标产物，并利用核磁共振、红外光谱、紫外可见光谱、热分析等手段确认了所制备聚合物的结构。

The operating range suitable for three-phase reaction was obtained and a mathematical model established. The results show that MSB formed by fine magnetizable powder and fliudizing flow can be operated stably in a wide range. MSB has three kinds of regimes: particulate, chain, and magnetically condensed. In these regimes, the chain regime is the best for three-phase reaction. When Ni-RE-P catalyst particles mixed with some iron powder, magnetically stabilization is easily achieved; therefore, it is possible that NiRE-P catalyst can be controlled in the bed for reaction more easilly if adding certain percentage of iron powder.

研究结果表明：细粉铁磁性颗粒形成的磁稳定床可在较宽流速范围内稳定操作，该磁稳定床有三种操作状态：散粒状态，链式状态和磁聚状态，其中有利于进行气液固三相反应的操作状态是链式状态；当磁稳定床在最小流化速度和带出速度之间操作时，床层处于链式状态；最小流化速度和带出速度可用（1-24）、（1-25）、（1-27）、（1-33）式计算；弱软磁性Ni-RE-P非晶催化剂中混入定量铁粉颗粒后便可形成磁稳定床，因此利用混入铁粉颗粒在外加磁场作用下控制弱磁性非晶催化剂颗粒进行反应的方法是可能的。

To ensure that the reaction force and anti-wall concrete pedestal construction quality and design requirements for reaction time pouring concrete pedestal捣成type, reaction formation pedestal error of less than ± 2.5mm; reaction wall flatness error of less than ± 2.5mm, reaction force wall verticality Gradient error is less than 10mm, anti-power wall concrete positive effects for the fair-faced concrete.

确保反力墙与反力台座的混凝土施工质量，设计要求反力台座混凝土一次浇捣成型，反力台座平整度误差小于±2.5mm；反力墙平整度误差小于±2.5mm，反力墙垂直度渐变误差小于10mm，反力墙混凝土正面为清水混凝土效果。

The effect of different reaction conditions,such as catalyst concentration,molar ratio of reactants,reaction temperature,reaction time,on the coupling reaction of trioxane and methyl formate synthesizing methyl glycolate and methyl methoxy acetate using sulfuric acid as catalyst has been studied.Through the analysis for the yield of products and system pressure,and comparison with other different acidity catalysts,we considered that the activation of formaldehyde was the control step of reaction rate to the...

以硫酸为催化剂，研究了三聚甲醛与甲酸甲酯偶联合成乙醇酸甲酯和甲氧基乙酸甲酯的反应中，催化剂浓度、原料配比、反应温度、反应时间等条件对反应过程的影响，通过对产物收率和系统压力变化的分析，并结合与其它不同酸强度催化剂的对比，得到甲醛的活化是偶联反应的速率控制步骤，催化剂的酸强度决定其对甲醛的活化能力，是影响偶联反应的主要因素。

The system can be widely used in belt weighing and batching process control,etc.

介绍了基于智能模糊控制的嵌入式配料系统的设计方法，对模糊PID控制过程和系统调零作了重点的讨论，同时给出了PID控制的程序流程图和系统定长调零子程序。

"I dunno," she answered,"but if you show me aroun', I'll recognize it from the lighthouse just outside the porthole."

"我不知道，"她回答说，"如果你能带我转转，我能认出来的，因为灯塔就在舷窗外。"