reac

The hydrocracking REAC pipes are special equipments , and easy to lead to serious accidents , for they suffer from the erosion of multiphase flow under the environment of high-pressure hydrogen .

加氢裂化反应流出物空冷器（简称REAC）管束属于特种设备，承受高压临氢多相流的冲蚀，易引发恶性事故。

The Experimental Research of Different Water Injection Point 's Influences on REAC 's Corrosion

注水点位置对空冷器腐蚀影响的实验研究

Simulation Research on Radioactive Gas Transfer of Reac to r

反应堆放射性气体迁移仿真研究

Study on Prediction Method of REAC Pipes ' Erosion Failure Based on Liquid Dynamical Analysis

基于流动分析的REAC管束冲蚀破坏预测方法

Numerical Simulation of the Reac Outlet Pipeline Structure Optimization

REAC出口管道结构优化的数值模拟

The results above will provide a theoretical basis and technical support for erosion failure prediction of REAC system .

为REAC系统的冲蚀预测及安全评估提供了理论依据和技术支持。

The signal system in reac to r

反应堆中信号系统

Invalidation mechanism of REAC pipes was studied , and the conclusions fit erosion results ;

详细探讨和分析了空冷器管束的腐蚀机理，得出的结论与实际腐蚀情况比较吻合；

The RAPD application in apple variety identification and the important influence factors on RAPD reac - tion were discussed .

讨论了RAPD鉴定苹果品种的应用及其主要影响因素。

Contribution from the breakup & fusion mechanism to continuum spectra of nuclear reac - tion is introduced .

本文介绍了裂解-聚合反应机制对核反应能谱的中段连续谱的贡献。

Analyse the Failure of Ammonia Cooler Study on Simulation of Multiphase Flow and Prediction of Erosion Attack Breakage for REAC Pipes

剑江化肥厂氨冷器事故分析加氢裂化空冷器管束多相流模拟与冲蚀破坏预测研究

Analysis on problem existed in naph - tha hydrocracking cold wall reac - tor and its improvement

石脑油加氢冷壁反应器存在问题的分析与改进措施

Since high-sulfur crude oil was processed in China , the cases of REAC failures tend to be more and more .

随着我国高硫原油加工技术进展，REAC的腐蚀失效日趋频繁。

FLUENT was applied to simulate liner pipes which had invalidation case , the actual reason of REAC pipes bursting was found ;

针对有衬管结构的REAC管束失效案例，采用FLUENT数值模拟，得到了REAC管束的实际爆管原因；

Apoptosis is the most common form of cell death in physiological condition , and is an active reac - tion of cells to surrounding signals .

程序性细胞死亡是细胞生理性死亡最常见的形式，是细胞对其周围环境信号的主动反应。

Checks the emulation result with the analysis of domestic REAC pipes failures , no destructed test in using and corrosion accelerated test , etc ;

并结合国产化REAC管束冲蚀破坏案例及失效解剖分析、在役无损检测仪开发和腐蚀加速试验等研究手段，对仿真计算结果进行全面考核；

Invalidation mechanism of homemade REAC liner pipe was summed up by particular discuss and analyse , the results were fit for actual instance ;

详细探讨和分析得出国产化REAC管束腐蚀的失效机理，结论与实际状况比较吻合；

HYDRODYNAMIC CHARACTERISTIC PROPERTIES UNDER PULSING FLOW REGIME Pulsing flow occurs at high gas and liquid flow rates in trickle-bed reac - tors .

滴流床反应器内脉冲流宏观流体力学的特性参数滴流床中气液流速较高时会产生脉冲流。

Chemical vapor deposition ( CVD ) is a common process . The chemical reac - tion between gases forms new materials that can meet some new properties .

化学气相沉积技术（CVD）是一种常见工艺，是通过气体间的化学反应制备新材料的过程，以满足某些新的性能。

In order to realize closed management , gives out the prediction method of the erosion failures of REAC pipes , the risk test in using and safety assessment guidelines .

为实现闭环管理，提出了REAC管束的冲蚀破坏预测方法、基于风险的在役检验和安全评估准则。

PERFORMANCE COMPARISON OF TWO HELICAL BAFFLE HEAT EXCHANGERS WITH DIFFERENT TUBE BUNDLES Study on Simulation of Multiphase Flow and Prediction of Erosion Attack Breakage for REAC Pipes

两种不同管束的螺旋折流板换热器的性能对比加氢裂化空冷器管束多相流模拟与冲蚀破坏预测研究

This paper is a review about the synthesis , characterization , property and application of rare-earth aminoacid complexes ( REAC ), which are effective fertilizers .

对近年来稀土氨基酸络合物的合成、性质、表征和应用研究方面的进展进行了归纳和评述。

In comparison with the pathological findings after hysterectomy or suction curettage , the accuracy of hysteroscopy reac ed 95 % .

宫腔镜检查与子宫标本及刮宫病理检查对照，正确率达95%。

In recent years , NACE T-8 committee , UOP and API have been doing comprehensive research and studying the failure mechanism of REAC .

近年来，NACET-8委员会、UOP公司和API协会正全面进行REAC管路系统的失效机理研究。

A superstructure model of reactor network is developed using plug flow reac - tor ( PFR ) and continuous stirred tank reactor ( CSTR ) .

以平推流反应器（PFR）和全混流反应器（CSTR）作为基本反应器类型建立了一个反应器网络的超结构模型，构造了超结构模型的非线性规划问题。

Failures of the reaction effluent air cooler ( REAC ) and the connected pipelines have been the major obstacle to safe operation of the hydrocracking unit .

其中，反应流出物空冷器（REAC）及相连管道的普遍性失效问题，已成为制约加氢裂化装置安全运行的关键因素。

The financial oppression centering on interest rate control caused a grievous negative reac - tion in the practice . Many country raised a financial liberalization movement one after the other .

以利率管制为中心的金融压抑在实践中产生了严重的负面效应，各国相继掀起了金融自由化运动。

EPMA has been performed using WDS to study the interface reac - tion which takes place in soldering Cu-Zn base alloy with Sn-Zn solders .

本文应用波长色散谱仪作电子探针微区分析，研究了Sn-Zn系钎料钎焊H62黄铜时发生的界面反应，即钎料与钎焊金属间进行的扩散和溶解。

The interaction between acid and mineral rocks is discussed according to the role that size , energy and reac - tion property of hydrogen ion and acid ions play in the reaction ;

从氢离子的体积、能量及反应特性和酸根离子在反应过程中的作用，讨论了酸与岩石矿物的相互作用；

Using the numerical simulated by CFD and no-dimension analysis for multiphase flow fluid motion and corrosion situation , analyses the erosion method of reacting effluent upon REAC pipes for extensive situations ;

通过对多相流介质流动及腐蚀状况进行CFD数值模拟和无量纲分析，来研究广泛应用条件下反应流出物对碳钢REAC管束的冲蚀破坏规律；