单词sodium的英汉翻译


sodium

[sәudiәm]
    n.[化] 钠







单词sodium的英汉对照例句


在不施氮的条件下种植水稻会降低古水稻土与现代水稻土中氨氧化细菌的数量,但施加硫酸铵在种植水稻30d时增加了其数量,而施加硝酸钠对其数量没有显著影响。现代水稻土的碳底物利用能力明显弱于古水稻土,微生物群落的shannon指数、simpson指数和mcintosh指数也不同程度的低于古水稻土;
Rice cultivation without n fertilization decreased the number of soil aob significantly while rice cultivation with ammonium sulfate fertilization increased its number within a short period of time but sodium nitrate fertilization did not show any significant effect on soil aob.the present paddy soil was much lower than the ancient paddy soils in carbon-source utilization capability and in shannon index simpson index and mcintosh index of microbial community to a varying extent.
在服小苏打后,疼痛可暂时缓解。
After I take some sodium bicarbonate the pain goes away temporarily.
在日化工业上,柠檬酸钠是替代产生公害的三聚磷酸钠的好的化学试剂,广泛用于合成各种无公害的洗涤剂。
In the daily chemical industry sodium citrate is a good chemical agent that may replace trimerous polyamide sodium phosphate which produces public pollution widely used for formatting various kinds of no pollution detergent.
在酸性饮料中,苯甲酸钠转化为苯甲酸,后者是更为有效的防腐剂。
In the acid drink sodium benzoate is converted to benzoic acid which is more effective as a preservative.
在一水硫酸氢钠存在下,由马来酸酐和乙醇合成了马来酸二乙酯。
Diethyl maleate was a synthesis from maleic anhydride and ethyl alcohol in the presence of sodium bisulfate monohydrate.
摘要测定了硝酸钾、硝酸铵和硝酸钠在甲醇-水、氨-水二元混合溶剂体系的相平衡数据,查明了甲醇和氨对三种硝酸盐溶解度的影响规律。
The equilibrium data of potassium nitrate ammonium nitrate and sodium nitrate in the binary mixed-solvent of methanol-water and ammonia-water were determined and the laws of influences of methanol and ammonia on the solubility of those nitrates have been found out.
摘要介绍了一水硫酸氢钠在催化合成酯(如一元羧酸酯、二元羧酸酯、氯乙酸酯、羟基酸脂、芳香酸酯)中的应用及其重复催化性能。
A review on application of monohydrated sodium bisulfate as catalyst in synthesis of ester such as monocarboxylic esters dicarboxylic esters chloroacetates hydroxycarboxylic esters aromatic esters and the reusability of sodium bisulfate with.
摘要介绍了一种高压钠灯设计的新方法。
This paper presents a novel method for high-pressure sodium lamp dessign.
摘要介绍了以水玻璃为原料,利用溶液结晶法生产五水偏硅酸钠的放大试验。
This article introduces the pilot experiment of producing pentahydrate sodium metasilicate by water glass with the method of crystal in solution.
摘要氯乙酸水解生产羟基乙酸的工艺过程中产生等物质量的氯化钠,采用莫尔法测定氯乙酸水解的产物氯化钠,并计算氯乙酸的水解转化率,从而选择和控制水解反应的条件。
The amount of hydroxyacetic acid equal to that of sodium chloride produced from chloroacetice acid hydrolysis is determined by adopting moore method and there fore the ratio of transformation of chloroacetice acid hydrolyzed can be calculated.
摘要使用较高模数的水玻璃混制的型砂具有残留强度低、吹co2间短等优点,并有好的抗吸湿性和表而稳定性。
The sodium silicate sand prepared with higher modulus sodium silicate has advantages of low residual strength short co2blowing time high moisture absorption ability and surface stability.
摘要为提高秸秆粗蛋白含量,以氢氧化钠、过氧化氢、生石灰、熟石灰、尿素为处理剂,进行不同浓度和不同组合方式处理小麦秸和莜麦秸的试验。
To effectively increase the crude protein content of the straw sodium hydroxide hydrogen peroxide quick lime urea were used as the treatment agents in the experiment with different densities and combinations treating wheat straw and straw of naked oats.
摘要以呋喃甲醛为起始原料,经厉化、贝克曼重排、异氰脲酸化、氨基化、缩合和成盐6步反应,合成了酰脲类青霉素抗生素呋布西林钠。
Furbenicillin sodium a known semi-synthetic ureide type of antibiotic firstly marketed in china was synthesized from starting material2-furaldehyde via six steps including oximation reaction beckmann rearrangement isocyannuration amination condensation and salification etc.
摘要综述了对甲苯磺酸、氨基磺酸、强酸性阳离子交换树脂、六水三氯化铁、五水四氯化锡、十二水合硫酸铁铵、-水硫酸氢钠、固体超强酸和杂多酸催化合成马来酸二异戊酯的方法。
Catalytic synthesis of diisoamylester maleate with toluene-p-sulfonic acid amino-sulfonic acid strongly acidic cation exchange resin ferric chloride hexahydrate stannic chloride pentahydrate; ammonium ferric sulfate dodecahydrate sodium bisulfate monohydrate solid super acid and heteropoly acid was reviewed.
专业从事光电器件、高压钠灯、汞灯、氘灯、金属卤化物灯及仪器仪表制造。
It goes in for manufacturing lighting and electric appliance high-voltage sodium lamp mercury lamp deuterium lamp metallic halide lamp and measuring instrument.

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