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To validate the accuracy of the simulation results of numerical steady flow test bench, experiments in a steady flow test bench with the Ricardo anemoscope were taken. The compared results between computations and experiments suggest that the former is reliable.

为验证数值稳流气道试验台模拟计算的准确，在采用Ricardo风速仪的气道稳流试验台上进行了试验，两种方法下的流通系数和涡流比比较说明：模拟结果是可靠的。

In subsequent experiments, the antioxidant enzyme activities of superoxide dismustase, catalase and glutathione peroxidase in juvenile goldfish exposed to single compound and equitoxic binary mixtures of 2-chlorophenol and 2, 4-dichlorophenol were investigated. Finally, the relationship between lethal doses and effective concentrations in the experiments are discussed.

第二部分通过系统研究氯酚类化合物单一化合物和等毒性二元混合物暴露对鲤科金鱼幼鱼的急性联合毒性作用方式和肝脏组织内三种细胞抗氧化酶(SOD， CAT和GSH-Px)的活性变化，探讨了水生生物急性致死剂量与效应浓度之间在数值上可能存在的相关性。

The reduction thermodynamics of Na 2CrO 4 and chromium oxides in the process of sintering and ironmaking is studied,and the simulating experiments in the laboratory and industrial experiments in 600 m 3 blase furnace are carried out.

介绍了铬渣用作炼铁熔剂的基本思想，研究了烧结－炼铁工艺中Na2CrO4和铬氧化物还原的热力学，并进行了实验室模拟试验和600m3高炉的工业试验。

In this paper, the factors that may cause crack breaking of concrete pavement of several built highways were analyzed systematically and thoroughly. From analysis to site experiments and calculation, it is believed that crack breaking is mainly caused by factors as follows: 1 、 Unqualified sedimentation and losing stabilization of the roadbedinduced crack in the early; 2、 Construction technology、 materials and incorrect treatment methodswere adopted;3 、 Crack breaking induced by thermal stress; 4、 Water cant circulate makes crack cause;With regard to the afore-mentioned problems, corresponding preventive measures, qualified control indices and site control approach are presented based on analysis theory and site experiments.

本文在全面系统地分析已建成的高速公路水泥混凝土路面产生的原因的基础上，通过现场试验及计算分析，确定了高速公路水泥混凝土路面裂缝的主要影响因素有以下几个方面： 1、路基的不均匀沉降、失稳是早期裂缝产生的主要因素； 2、施工工艺、材料问题及养护方法不当； 3、温度应力产生的裂缝； 4、排水不畅影响裂缝产生；针对上述问题，通过理论分析及现场数据提出相应的质量控制目标、现场控制方法。

First, the preparation of l,2-dichloro-4-nitrobenzene, which l-chloro-4-nitrobenzene reacted with chlorine in a self-designed chlorinator, in presence of Lewis acid catalyst,.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 yield of l,2-diehloro-4-nitrobenzene was 83.26%.

为此，本文首先在自行设计的塔式氯化器中，以对硝基氯苯为原料，路易氏酸作催化剂，分子氯氯化合成3，4-二氯硝基苯(合成3-氯-4-氟-硝基苯的原料)，根据该氯化过程特征，利用正交试验设计方法结合单因素实验考察了有关因素对氯化过程的影响，优化得到了最佳的氯化工艺条件，3，4—二氯硝基苯的收率可达83.26％。

Influence of the concentration of Cr in the leachate and quantity of Pb(CH3COO)2 of Pb(NO3)2 on the reaction of synthesizing yellow chrome was also studied. Finally, according to the criterion and standard method in GB3184-82, some yellow chrome synthesized in the experiments was sampled and the concentration of PbCrO4 in these samples was determined. The following conclusion can be drawn from these experiments.

根据中华人民共和国国家标准GB3184-82中的规定铅铬黄颜料的技术质量指标和检测方法，测定了铬黄样品中铬酸铅含量的厂迄回【、矾士牢位论父泅仰yW盯皿'S川mS达标情况，结论如下：门）反应中重铬酸盐的浓度并不需要达到前人所提出的150～2509·L'的范围，在一定条件下低于此浓度时对铬黄生成反应并无不利影响。

The results of these cellular experiments are quantitatively similar to the results of behavioral experiments with the same protocol and parameters, suggesting that activity-dependent amplification of presynaptic facilitation may make a significant contribution to classical conditioning of the withdrawal reflex.

这些细胞实验与同样方法和参数下的行为学实验有著同样的定量结果表明突触前的活动依赖性增幅对撤回反射中的经典制约有重大贡献。

Meanwhile, the experiments show that the multi-level swarm intelligence refinement algorithm is better than the multi-level tabu search refinement algorithm, especially in view of the probability that the approximate global minimum partition of the coarser graph may be the local minimum partition of the finer graph. Furthermore, the experiments show that the multi-level ant colony optimization refinement algorithm achieves more performance improvement than the multi-level particle swarm optimization refinement algorithm, using the gain of vertex more effectively.

实验数据反映出，针对最小图上的全局最优剖分可能是初始图的局部最优剖分、粗化图上的全局最优剖分可能是细化图的局部最优剖分的情况，基于群智能的多水平迁移优化算法相比基于禁忌搜索的多水平迁移优化算具备更强的逃离局部最优的能力；基于蚁群的多水平迁移优化算法相比基于微粒群的多水平迁移优化算法，对收益值的启发信息更为有效地利用，取得最佳的性能改进。

This period-doubling has been validated by experiments, and the results of experiments were coincident with the simulation.

在试验中也发现了倍周期现象，并且实验记录与仿真吻合。

Experiments of Genetics A is offered in combination with key experiments of Genetics A.

遗传学A实验》是配合《遗传学A》的实验课程。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。