查询词典 sulphuric acid

Indirect electrochemical oxidation of anethole to anisaldehyde was investigated in non-membrane electrolytic cell using Mn/Mn as redox mediator, and pure lead as cathode and anode in sulphuric acid solution. The effects of electrolysis conditions on the yield of Mn was particularly discussed.

研究了在硫酸溶液中以Mn/Mn作为媒质，铅为阴极和阳极，在无隔膜电解槽中间接电化学氧化茴香脑合成茴香醛，讨论了电解反应条件对电解产率的影响。

Indirect electrochemical oxidation of anethole to anisaldehyde was investigated in non-membrane electrolytic cell using Mn/Mn as redox mediator,and pure lead as cathode and anode in sulphuric acid solution.

研究了在硫酸溶液中以Mn/Mn作为媒质，铅为阴极和阳极，在无隔膜电解槽中间接电化学氧化茴香脑合成茴香醛，讨论了电解反应条件对电解产率的影响。

The anhydrite is then cooled down and traces of sulphuric acid are neutralized with lime before the product is ground to the required size for commercial purposes.

硬石膏被冷却下来，微量的硫酸被石灰中和掉，产品然后按商品要求加工成规定的大小。

With a soluble carbohydrate this appears as a ring if the the sulphuric acid is gently poured into form a layer below the aqueous solution.

Molish试验：生药水浸液，加a -萘酚试剂数滴，摇匀后沿管壁滴加浓硫酸，若有糖类成分与甙类存在，则在二液面交界处出现紫红色环。

It is also present in an aqueous solution of nitrourea or a sulphuric acid solution of nitrourea.

它也存在于硝基脲的水溶液或硝基脲的硫酸溶液中。

A large number of density/concentration conversion tables are stored in the instrument as standard, e.g.°Brix,°Baume,% alcohol,% sulphuric acid, API gravity, etc.

仪器储存了大量的密度/浓度转换标准表，如白利糖度、波美比度、酒精浓度、硫酸浓度、API比重等。

Bellflower to soil and acetone in petroleum ether 10-Soxhlet extraction in the extraction, extracts of the scale centrifuge tube in a concentrated sulphuric acid purification.

土壤和桔梗以石油醚十丙酮在索氏提取器中提取，提取液在刻度离心试管中以浓硫酸净化。

HeBei JiHeng Group Co.,LTD has the chemical engineering as its leading industry. it's a comprehensive company of producing. trading and scientific rearching. The major products includes chlorine.sulphuric acid .carbinol etc.which is the largest manufacturer of disinfectant in Asia, the second in the world. And it is also the largest manufacturer of persulphate salts in china, the largest manufacturer of ease pain material in north area of china.

河北冀衡集团有限公司是以精细化工产品生产为主导产业，集科工贸为一体的综合性企业集团，主要基础化学品有氯气、离子膜碱、隔膜碱、硫酸、甲醇等，是亚洲规模最大、世界第二的消毒剂生产基地，中国最大的过硫酸盐生产基地和中国华北地区最大的解热镇痛原料药生产基地。

HeBei JiHeng Group Co.,LTD depends on producting chemical engineering as its leading industry. It is a comprehensive company of producing .trading and scientific rearching..The major products comprise chlorine .sulphuric acid .carbinol etc.which is the largest manufacturer of disinfectant in Asia,the second in the world. And she also is the largest manufacturer of persulphate salts in china,the largest manufacturer of analgin in north area of china.

河北冀衡集团有限公司是以精细化工产品生产为主导产业，集科工贸为一体的综合性企业集团，主要基础化学品有氯气、离子膜碱、隔膜碱、硫酸、甲醇等，是亚洲规模最大、世界第二的消毒剂生产基地，中国最大的过硫酸盐生产基地和中国华北地区最大的解热镇痛原料药生产基地。

Thereafter, the sequential process would involve a solid/liquid separation, reduced sulphuric acid leaching, counter current decantation, solvent extraction of the copper and cobalt and their electro-winning to produce high purity copper and cobalt cathode metal.

后续程序还包括固液分离，简化的硫酸过滤处理，逆流移注（这个词翻译可能不准，请自己调整），铜和钴的溶媒萃取和电解来生产/还原出高纯度的阴极金属铜和钴。

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。