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.

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。

They can also be used for such materials as following:making planes and spacecrafts,screening high-speed neutron reactors,a superconductor in electrical appliance industry,The vanadium compound can be used as a caterlyzer in sulphuric acid industry,a mixture of ethylene and propylene in symthetic rubber and a desulfurizer in oil-refinery ,an oxidizer in making nylon,pesticide,polyvinyl chloride,a non-propylene decarbonizer in chemical fertilizer industry,amilioration of A.D.A.non poisonkous desulpurtion.

我公司生产的五氧化二钒99.5级，99级，98级以及偏钒酸铵，用途广泛，它可制取金属钒和钒合金，用于钢铁冶炼\机械，飞机以及宇宙飞船制造等行业，快中子反应堆的屏蔽材料和电子工业的超导材料，钒化物应用于硫酸工业催化剂，合成橡胶的乙烯和丙烯交联，石油精炼中的脱硫，尼龙，农药，塑料聚氯乙烯制造的氧化，化肥工业的笨非尔无毒脱碳，改良A，D，A法无毒脱硫，钒化物还因其色泽艳丽而作为颜料应用到玻璃，陶瓷，医药等行业，钒酸盐也是印染业良好的媒染剂。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。