根据实验的

Firstly, indoor rheological research was done on the transportation oil of Dongxin pipeline. Then, 5 kind antifreezing agents and 5 kind viscosity reducers were selected based on the rheological characteristic.. EVA(2804) antifreezing agent with better modifying effect was chosen, and its modifying effect was certified by the indoor annulus experiment: the freezing point of Dongxin crude oil can be reduced to 5℃, and the viscosity reducing rate can be up to 9.51%.

首先对东辛线输送介质进行了室内流变性研究，然后根据其流变特性查阅文献选取了5种降凝剂和5种降粘剂，分别测定了原油加剂前后的凝点和表观粘度的变化，最终筛选出了一种改性效果最好的药剂，并通过室内环道实验验证了改性效果。

And a conclusion that the small angle approximating is the precondition of sine wave magneto-optical modulation, and the constraint on angle can be relaxed applicably when sine wave magneto-optical modulation be used in measuring polarization was gained.

根据计算机模拟和实验研究的结果，对正弦波及方波磁光调制进行了比较分析，得出了方波磁光调制具有较大的应用价值和良好的应用前景的结论。

The simplified peseudo-first-order kinetic model for hydrolyzation of benzal chloride was proposed according to the character of hydrolyzation reaction and the apparent reaction rate constant and activity energy was obtained. The activity energy is 17.73KJ/mol in the temperature range from 900C to 1100C and the model values and experimental values tally well.

根据水解反应的特点，提出了简化的苄叉二氯水解反应拟一级动力学模型，经参数估计，得出了水解反应的宏观反应速率常数和活化能，在900C～1100C温度范围内，反应活化能为E1＝17.73kJ/mol，模型计算值与实验值吻合较好。

A new method for preparing Ag-Hg microring electrodes by chemical plating is presented and the cyclic voltammetric waves of benzoquinone on SMRE are described in this paper.

根据不同扫描速度时还原波的峰电流值可以计算得到苯醌的扩散系数(D_0)值。n和D_0的测定结果与文献值相一致，所得到的实验结果与理论相符合

The degradation of PAHs at 0.03, 0.3, and 3 mg/g soil, either added singly or as mixtures, were evaluated for their evolved CO2 in Biometer flasks. The contaminated soil was later Soxhlet extracted with hexane. The extracts were evaporated, redissolved in dimethyl sulfoxide, and subjected for Microtox assay and Medaka embryo toxicity test. The evolved CO2 from singly PAHs addition was correlated with concentration gradient.

根据结果显示，受单一PAHs污染土壤之降解量，以CO2累积量表示，两环之Naphthalene其降解量为最多，在低浓度0.03 mg PAHs/g soil时，有所谓的诱引作用产生；受混合PAHs污染土壤之降解量，以Naphthalene对於Phenanthrene的刺激作用为最大；在复育实验方面，以添加苯酸之CO2累积量为最高，单就界面活性剂而言，则以Tween 80的表现为最佳。

In this article I contrapose the structure characteristic and application requirement of some material wan and design a frame of network time synchronization system,and then give the realization arithmetic base on the material application,viaing to the emulational experimentation result by the programme realization and network construction,validate the validity and feasibility of this design.

本文基于NTP协议针对某具体广域网的结构特点和应用需求进行了网络时统系统的框架设计，并根据具体应用给出了实现算法，通过编程实现和网络构建得到的仿真实验结果，验证了该系统设计的有效性和可行性。

We divided the web-based biology course in the normal university to three types: depictive course, quantity course and experimental course; take some assumptions and suggestions to the design of the different web-based course, and illustrate by example.

根据高等师范院校生物系所设置的生物学课程内容的不同特点和表现方式，可将它们划分为三类：描述类课程、数量类课程和实验类课程；对不同类型网络课程的设计制作提出了设想和建议，并举例加以阐述。

The experimental values of the critical concentration were in agreement with the calculated ones based on the Khokhlov-Semenov-Odijk theory, which indicated that the lyotropic behavior of chitosan in dichloroacetic acid can be well described with wormlike chain model.

临界浓度的实验值与根据Khokhlov-Semenov-Odijk理论预示的值比较一致，说明蠕虫链模型可以很好地描述壳聚糖分子链在二氯乙酸中的溶致液晶行为。

The antifungal activities of these materials were investigated and build foundation to develop low poison plant antifungal products. In experiment, polyphenols were extracted by reflux ectraction method which applyed petroleum ether to degrease and methyl alcohol solvent. Phenolic hydroxyl were examined and inspected by colour-developing reaction and the content of total polyphenols was determined by UV-spectrophotometry. Screening test were performed to the antifungal activities of polyphenol extraction by the tube dilution method to the selected ten pathogenic fungus such as Dothiorella gregaria, Rhizoctonia solani, Phyllosticta pirina, and the minimal inhibitory concentration were measured. The column chromatography and thin layer chromatography were applyed to separate and analyse cortex extracts of Dracaena cochinchinensi Lour.

实验部分采用以石油醚脱脂，甲醇为溶剂的回流提取法来提取植物多酚，用显色反应检识酚羟基；采用紫外分光光度法对多酚粗体物进行总多酚含量的测定；选取了聚生小穴壳菌、立枯丝核菌、梨叶点霉等10株常见农林业致病真菌，采用试管液基稀释法对多酚粗提取物进行了抗真菌活性筛选试验，并测定其最低抑菌浓度；采用柱层析法和薄层层析法对其中抑菌效果较好的龙血竭进行分离分析，根据其中3种化合物的光谱数据UV、IR、~(13C-NMR、1H-NMR和MS鉴定其结构。

In order to detect product\'s quality and to adjust the synthetic conditions, UV and RP- HPLC methods for the determination of the target product were established according to the components of products in the electrosynthesis course, by which target product were able to be simply, fast and accurately determined without separation in advance. And satisfactory results were obtained when they were applied to the determined of the product\'s content.

本研究为检验产品质量，调整合成工艺条件，根据电合成过程中生成物的组成情况，首先建立了无需进行分离就能够简单、快速、准确测定目标产物的紫外分光光度法和反相高效液相色谱法，并将其应用于产品含量的测定，获得令人满意的实验结果。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。