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Acetone and SDS have been added to CH2CL2 solution containing PLA. After sonification of 20 minutes, this polymer solution has been dropwisely added to aqueous solution containing 8-14% Pluronic F-68 surfactant and stirring with homogenizer (25000 rpm). With rota-evaporator to remove solvent, polyester nanoparticles possessed average size between 61 and 64 nm. Other combinations of surfactants, such as : SDS and PVA, PAA and SDS, used in preparation of nanoparticles of polyester, resulted in much larger particles compared to above.

丙酮和十二烷基硫酸钠加入溶於二氯甲烷的聚乳酸中，并经超音波振荡20分钟，所产生的高分子微粒溶液再滴入以均质机搅拌(25000 rpm)含有(8-14%) Pluronic F-68界面活性剂溶液中，经减压浓缩除去溶剂后，奈米聚酯微粒平均粒径大小为61-64 nm，其他界面活性剂组合，包括十二烷基硫酸钠与PVA、PAA与SDS，其产生聚酯平均粒径皆大於此。

The method is as follows: n-butyl titanate, absolute ethyl alcohol, surfactant and concentrated hydrochloric acid are fully mixed and stirred for 4 to 6 hours under room temperature to obtain precursor solution, then the precursor solution is spinningly coated on a clean conductive glass substrate of an indium oxide tin coating, and then the conductive glass spinningly coated with the precursor solution is preserved for 25 to 72 hours at the temperature of between 20 and 30 DEG C and the relative humidity of between 50 and 75 percent below, and finally undergoes a high-temperature calcination at the temperature of between 350 and 700 DEG C.

将钛酸正丁酯，无水乙醇，表面活性剂和浓盐酸充分混合，在室温下搅拌4小时-6小时得到前驱剂，然后将前驱剂旋涂在清洁的氧化铟锡镀层的导电玻璃基底上，接着在20℃-30℃，相对湿度在50％-75％下，将旋涂有前驱剂的导电玻璃保存24小时-72小时，最后经过350℃-700℃高温煅烧。

The invention relates to a pipeline polyurea outer anticorrosive coating and the making method thereof, making heated prepolymerization reaction on dibenzo-methane diisocyanate, carbodiimide diisocyanate, polyether binary alcohol and polyether trihydric alcohol to prepare prepolymer solution A, and making end amino polyethylene oxide ether, dimethyl sulfur-based toluene diamine, diethyl diamine, iso-propyl titanate solution, polyacrylate, carbon black, titanium dioxide and lightweight calcium carbonate into solution B, and as using, respectively heating the solutions A and B to 65 deg.C and then mixing them, then quickly spraying and curing to form a coat.

本发明涉及一种管道用聚脲外防腐涂料及制造方法，由二苯基甲烷二异氰酸酯、碳化二亚胺化二异氰酸酯、聚醚二元醇和聚醚三元醇通过加热预聚反应制成预聚物的A液、由端氨基聚氧化乙烯醚、二甲硫基甲苯二胺、二乙基甲苯二胺、钛酸异丙酯溶液、聚丙烯酸酯溶液、碳黑、钛白粉和轻质碳酸钙配制而成的B液组成，使用时将A液和B液分别加热至65℃后混合，然后快速喷涂固化形成涂层。

The optimum conditions were achieved and demonstrated as follows: ethanol solution (volume fraction as 60 %) as extraction solution, the ratio of materials to solution as 1:20, microwave power as 600 W and 2 mm extraction time. By the optimum conditions, the yield (83.7%) of flavone from Trollius chinensis Bunge was obtained at 83.7%.

实验结果表明：微波辅助提取金莲花黄酮的最佳工艺条件是体积分数60%乙醇为溶剂，每克料浸提剂体积为20mL，微波功率600W，温度60℃，提取时间2min。

In order to study the effects of salt treatment with different NaCl concentration on the seed germination and the content of Na~+ and K~+ in the seed coat and embryo of Hibiscus hamabo Sieb.et Zucc., the seeds were cultivated by 1/4 Hoagland nutrition solution with 0, 50, 100, 150 and 200 mmol·L~(-1) NaCl, the germination rate and imbibition rate were measured every day, the content of Na~+ and K~+ in seed coat and embryo was determined when the seeds were treated for 5 and 10 days respectively; and after 15 days , the ungerminated seeds in 1/4 Hoagland nutrition solution with NaCl were cultivated by 1/4 Hoagland nutrition solution without NaCl.

用NaCl浓度为0、50、100、150和200 mmol·L~(-1)的1/4 Hoagland营养液培养海滨木槿Hibiscus hamabo Sieb.et Zucc。

A new oxidative unhairing method using chlorine dioxide solution was studied by preparing chlorine dioxide solution, finding proper parameters of the chlorine dioxide solution unhairing process and applying it to leather making.

对二氧化氯水溶液氧化脱毛法进行研究与实践，包括制备二氧化氯水溶液、确定二氧化氯水溶液氧化脱毛工艺和将此工艺用于制革试验。

The results show that 42.86% topsoil samples are polluted by Cadmium, soil synthesis pollution index is moderate, Cadmium pollution degree of topsoil correlate with the environment of sampling sites. The results also show that exchangeable Cd, carbonate-bound Cd, organic-bound Cd and residual Cd are found in all soil samples except for Fe-Mn oxide-bound Cd. Furthermore, the concentration of exchangeable Cd and carbonate-bound Cd, both which have high biological validity, is high. Humus has a certain correlation with exchangeable Cd, organic-bound Cd and residual Cd, and has no obvious correlation with other chemical speciations. Any chemical speciation of Cd has no obvious correlation with pH and total Fe of soil samples. Cadmium in topsoil can be eluviated by acid solution, the quantity of Cadmium eluviated by redistilled water is little. With the rise of pH of eluviating solution, eluviated Cadmium quantity decrease. For the same soil sample, the lower pH value of eluviating solution is, the more fast the Cadmium is eluviated, and the more thequantity of Cadmium is eluviated.

研究结果表明：成都市表生土壤样中有42.86%受镉污染，镉综合污染水平达中度污染，成都市表生土壤镉污染程度与采样点周围环境表现出一定的相关性；除铁锰氧化物结合态镉在部分土壤样中未检出外，所有土壤样均含有可交换态镉、碳酸盐结合态镉、有机结合态镉、残留态镉，且生物有效性较高的可交换态镉和碳酸盐结合态镉占总镉量比例较高；成都市表生土壤中的腐殖质与可交换态镉、有机结合态镉、残留态镉有一定相关性，与碳酸盐结合态镉、铁锰氧化物结合态镉相关性不显著；各形态镉与土壤pH值和全铁的相关性均不显著；土壤中的镉可被酸溶液淋出，重蒸馏水淋出镉量十分微小；随着淋滤液pH值的升高，土壤样的镉淋出量下降，且0～5小时时段的镉淋出量占镉总淋出量比例下降，5～30小时时段的镉淋出量占镉总淋出量的比例上升，对同一土壤样而言，酸度大的淋滤液比酸度小的淋滤液淋出镉速度更快，淋出镉量更大。

The polyaluminum flocculates with different B values were prepared by addition NaOH solution to AlCl〓 solution on using different methods. The characteristics of solution chemistry and species distribution in the polyaluminum solutions were examined completely and deeply by the potentiometry,〓Al NMR, Ferron timed comlexation spectrophotometry, Na〓SO〓 precipitation and ultrafiltration method.

应用多种化学分析技术及现代分析仪器，如电位滴定、Ferron逐时络合比色、Na〓SO〓沉淀、超滤膜过滤、X-衍射、富里叶红外光谱、扫描电镜等对铝盐的水解聚合反应过程、形态分布及其结构特征进行了全面深入地分析研究。

Results show that the prepared polymer membranes are porous honeycombing with excellent solution uptake and reservation abilities, the solution uptake ratio is up to 320% and the mass loss is only 31% after heated at 50℃ for 5 h. With that solution uptake ratio, the conductivities arrive 3.93×10^(-4)S/cm at ambinet temperature.

结果表明，该聚合物膜呈多孔蜂窝状，具有较高的吸液能力，在电解液中浸泡5h后的吸液率达320%，此时该聚合物多孔隔膜的室温电导率也达到了3.93×10^(-4)S/cm；并且保液能力良好，在50℃的空气中保持5h的质量损失仅为31%。

The results showed that there was certain linear relations between pH value and acidity of lixiviating solution/saccharide solution within certain range and pH value of lixiviating solution could be used to judge the quality of Q303 rhizopus starter.

结果表明，在一定范围内，试饭浸液的pH值与试饭糖液pH值和酸度有一定在线性关系；可利用饭浸液的pH值来判断Q303根霉曲的质量。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。