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The effect of hydrophobic additive on the seed precipitation from sodium aluminate solution was studied by adding fatty acid and heneicosane at different proportions. The results show that when the mass fraction of fatty acid is in the range of 32%-49% and the additive concentration in sodium aluminate solution is 150×10-6 g/L, the rate of precipitation increases, but the particle size of Al3 and Al2O3 reduces.

摘 要：研究了疏水性添加剂脂肪酸类阴离子表面活性剂与21-碳烷不同配比对铝酸钠溶液分解产生氢氧化铝和氧化铝的粒度、强度及分解率的影响，考察了产物Al3和Al2O3的强度和粒度之间的关系，探讨了添加剂影响铝酸钠溶液晶种分解的相关机理。

It is found that the Co/Zr ratio in the powders was indistinguishably equal to the Co~(2+)/Zr~(4+) ratio in the original mixed solution and the boron content of the samples increased along with the addition rate of NaBH_4 solution.

还产物中的Co原子和Zr原子的摩尔数之比与金属盐混合溶液中的Co~(2+)与Zr~(4+)的摩尔浓度之比几乎相等。

Mol/L. 3 A study on the ECL of acridinum esters including 10--acridinium-9-carboxyl-phenyl-ester iodinate and 10-methyl-9-(p-formylphenyl)-acrdiniumfluorosulphonate in neutral solution was carried out. It was found both CACPEI and MFPA give strong ECL in KNO〓 solution when an appropriate voltage was applied on Pt electrode.

本文研究了碘化10-乙羧基吖啶-9-羧酸苯酯和对甲酰基苯基-10-甲基吖啶-9-羧酸酯氟磺酸盐的ECL行为，发现在中性KNO〓介质中，这两种吖啶酯都能在一定的电位下产生很强的ECL信号，考察了各种影响因素，确定了发光的最佳条件，探讨了可能的发光机理。

The microscale reaction was performed by introducing the solution of benzaldehyde and phenylenediamines in ethanol, and the solution of iodobenzene diacetate in ethanol through the two inlets of the Y-shaped microfluidic chip reactor at ambient temperature.

反应物邻苯二胺和苯甲醛的乙醇溶液以及二醋酸碘苯的乙醇溶液，分别从微流控芯片反应器的&Y&型进样口注入，混合反应2分钟后，即可得到苯并咪唑类化合物。

The neural network's outputs included the corrosion-inhibition efficiencies of isoquinoline and its hydroxyl and carboxyl derivatives for iron electrode in HCl solution or electrode parameters which were determined with electrochemical methods in 1.0 mol·dm-3 HCl solution at 30℃.

以缓蚀剂分子氮净电荷、自由价、亲核前沿电荷密度等量子化学参数为输入变量，考察了异喹啉及其羟基、羧基衍生物在30℃，1.0mo1·dm~(-3)HCl溶液中对铁的缓蚀效率，建立了相应的预测模型。

After As in WO3 is dissolved with NaOH solution, WO3 is coordinated by citric acid. In HCl medium, As is reduced to lwo valency As by KI and then low valency Asis reduced to gas AsH3 by SnO2 and metal Zn. After that, DDTC-Ag solution is applled as absorbent for colorimetric determinhtion.

用氢氧化钠溶液溶出三氧化钨中的砷之后以柠檬酸配位三氧化钨，在盐酸介质中用碘化钾将砷还原成低价砷，再用二氯化锡和金属锌将低价砷还原成砷化氢气体，以DDTC-Ag溶液吸收进行比色测定。

The 5-D mothod was used in the optimum design of nonsymmetrical T-type passive filter. Results show that 5-D data field obtained provides direct decisionmaking supports in the global optimum solution of quaternion nonlinear equation, and for the robust analysis of the solution as well.

变频器用非对称T型无源滤波器优化设计的实践表明，在求此类4元非线性方程全局最优解及判别数值解的鲁棒性时，该方法所得到的五维数据场可提供直观的信息。

The aim of this study was to develop a novel amphiphilic functional block poly(ε-caprolactone) bearing ketone groups MPEG-b-P(OPD-co-CL. 2-oxepane-1, 5-dione was copolymerized with ε-caprolatone in which methoxy poly (MPEG, Mn=5 000) and stannous octoate were used as initiator and catalyst, respectively. The syntheses were conducted by bulk and solution polymerization. 1H NMR results showed that peak position and splitting of the polymers synthesized through solution polymerization were consistent with theoretical data, demonstrating the products were designed block copolymers. While in the bulk polymerization, polymer peak position was changed due to their high reaction temperature, suggesting their structural variation.

将带有羰基官能团的4-羰基己内酯和ε-己内酯分别在甲氧基聚乙二醇(MPEG，Mn=5 000)为引发剂，异辛酸亚锡为催化剂溶液和本体体系中开环聚合，合成了两亲性侧基带有羰基官能团的聚己内酯嵌段共聚物MPEG-b-P(OPD-co-CL.1H NMR结果表明采用溶液聚合法合成的聚合物各峰的峰位置和分裂情况与理论一致，证明了产物是实验所设计的嵌段共聚物，而采用本体聚合法合成的聚合物由于温度的影响，聚合物各峰的峰位置发生了变化，说明其结构发生了变化；差示扫描量热法分析结果表明随着OPD单体含量的增加，聚合物的熔点，玻璃化转变温度和熔融焓增加；热失重测试结果表明OPD单体的引入增加了聚合物的热敏感性。

The orthograph can be transformed to the 3D graphics by using 3D functions in AutoCAD, thus all analysis and reasoning for the solution can be clearly visualized in 3D space, and then by baking to the 2D environment the solution can be easily made.

借助AutoCAD的三维图形功能，可将平面正投影图转化为空间三维图形，在三维空间进行分析、推理和求解，然后再返回二维作图，使解题过程概念清晰，可视性强。

The experimental results have shown that ofloxacin in HCl (0. 1 mol/L)solution has maximum absorptivity at 293nm. Good linear correlation is seen between concentrations of ofloxacin in the range of 18 μg/ml and their absorptlvity. The results of experiment of stability show that light and heat have almost no effect on ofloxacin otic Solution. The validity is two ...

实验结果表明氧氟沙星用盐酸作溶剂在紫外区有最大吸收，最大吸收波长为293nm，在测定范围内（1－8μg／ml）浓度与吸光度呈线性关系；药用辅料对浦耳液中氧氟沙星的含量测定无干扰；稳定性试验表明光、热对氧氟沙星滴耳液（pH＝6－7）的含量影响不大，根据加速试验和室温留样试验可将本品有效期定为二年。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。