查询词典 sulphuric acid

The effects of reaction temperature, pyrolusite dosage, initial concentration of caramel and sulphuric acid on the decolorizing rate of caramel were investigated.

结果表明，焦糖色素的降解脱色速率随焦糖色素初始浓度、硫酸浓度、软锰矿用量和反应温度的增加而增加。

The Raw materials were pyrite, pyrolusite and waste sulphuric acid.

已有在钦白废酸中用铁屑还原软锰矿生产硫酸锰的中试〔幻。

The results showed that the decolorizing rate increased with the increase of reaction temperature, pyrolusite dosage, initial concentration of caramel and sulphuric acid...

对实验数据进行拟合，得到了焦糖色素降解脱色动力学模型，其脱色过程的表观活化能为24.4kJ/mol，焦糖色素、硫酸和软锰矿的表观反应级数分别为2.0，0.58和1.09。

Some cellulose was used as reductant to reduce pyrolusite of low grade, and manganese sulfate was obtained by leaching the reaction product with sulphuric acid.

用纤维素作还原剂还原低含量软锰矿，再用硫酸浸取制备了硫酸锰。

The germination patterns performed significant difference between the pre-sowing treatments for all ten Calligonum species, and the speed and per cent germination of the Calligonum species can be greatly increased by mechanical scarification or sulphuric acid treatments.

沙拐枣植物的萌发模式在不同种子预处理间均表现出明显的差异性。

Filters filter on airflow resistance, resistance to form, filter, resistance increases, when the sulphuric acid resistance increases to a specified value, filter scrap.

过滤器阻力：过滤器对气流形成阻力，过滤器积灰，阻力增加，当阻力增大到某一规定值时，过滤器报废。

Sulphuric acid, a by-product of smelting, was in demand in China.

硫酸，副产品的冶炼，是中国的需求。

The elution results showed that there would be a definite effect after the fiber was treated by sodium cyanide after elution by sulphuric acid and ammonia, then with sodium nitrate.

铁的解吸探索实验发现，用第一步硫酸解吸回收氰化氢的氢氧化钠溶液处理第二步氨水解吸后的纤维，然后用硝酸钠解吸，有一定的效果。

The antimony doped tin oxide nanoparticles were synthesized at 240℃for 17 h by the complexing hydrothermal oxidation method using stannate, antimony white and sulphuric acid as the starting materials, sodium hydrotartrate as the complexing agent and hydrogen peroxide as the oxidant. The resulting powders were characterized by means of differential thermal analysis, infrared spectrometry, X-ray diffraction and transmission electron microscope. The mechanism of the preparation of ATO powder was investigated as well.

摘 要：以锡酸钠、锑白和硫酸为原料，酒石酸氢钠为配合剂，双氧水为氧化剂，采用配合水热氧化法在水热氧化温度为240℃和水热保温时间为17 h时，合成单分散性的蓝色锑掺杂二氧化锡粉末，用差热分析、红外光谱、X射线衍射和透射电镜对所制得的粉末进行表征，并对ATO纳米粉体的配合水热氧化合成机理进行探讨。

The antimony-doped tin oxide nanoparticles were synthesized at 240℃ for 17h by the complexing-hydrothermal oxidation method using stannate, antimony white and sulphuric acid as the starting materials, sodium hydrotartrate as the complexing agent and hydrogen peroxide as the oxidant. The resulting powders were characterized by means of differential thermal analysis, infrared spectrometry, X-ray diffraction and transmission electron microscope. The mechanism of the preparation of ATO powder was investigated as well.

以锡酸钠、锑白和硫酸为原料，酒石酸氢钠为配合剂，双氧水为氧化剂，采用配合－水热氧化法在水热氧化温度为240℃和水热保温时间为17h时，合成单分散性的蓝色锑掺杂二氧化锡粉末，用差热分析、红外光谱、X射线衍射和透射电镜对所制得的粉末进行表征，并对ATO纳米粉体的配合－水热氧化合成机理进行探讨。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。