查询词典 synthesis

A novel method for the synthesis of α-bromo acetophenone s by the reaction of 1,3-dibromo- 5,5-dimethylhydantoin with p-toluenesulfonic acid in methanol at 20～60 ℃ was described.

报道了使用1，3-二溴-5，5-二甲基海因和对甲苯磺酸在甲醇中和20～60℃的温和条件下合成α-溴代苯乙酮的新方法。

The synthesis of methyl benzoate was carried out from acetophenone and dimethyl carbonate in the presence of solid acid and base catalysts.

以固体酸碱为催化剂，研究了碳酸二甲酯与苯乙酮合成苯甲酸甲酯的反应，考察了反应温度、反应时间、催化剂用量和原料摩尔配比等因素对反应结果的影响。

The synthesis of acetyl CoA is a high-energy process, requiring energy from ATP, which is converted to AMP.

合成乙酰辅酶 A 是一个需要 ATP 供能的高能的过程，在这个过程中 ATP 转变为 AMP 。

Biotin is not saturated fatty acids required for the synthesis of the coenzyme acetyl CoA.

生物素是不饱和脂肪酸合成过程中所需的乙酰CoA的辅酶。

Compressed acetylene access to a clean series of towers, tower 2 clean washed by the oxidation of sodium hypochlorite solution to remove sulfur, phosphorus and other impurities, and then into the tower and 10% to 15% alkali solution and, after purification acetylene by the cooling device of the initial removal of the water saturation after the sperm of more than 98.5 purity acetylene synthesis process used to send VCM.

压缩后的乙炔进入串联的1号清净塔、2号清净塔，经次氯酸钠溶液洗涤氧化除去硫、磷等杂质后，再进人中和塔用10%～15%碱液中和，净化后的乙炔经预冷器初步除去饱和的水分后，纯度98.5%以上的精乙炔送VCM合成工序使用。

Ionic Radius Scale of Establishing Synthesis Factor of Ionic Mass and Electricity;2. Determinat ion of Fluoride in Sea Food and Meat by Ion Chromatogram;3. Determinat ion of Sulfuric Acid Mist in Air by Ion Chromatography

Er离子和Yb离子钙离子和离子离子等离子体"离子束，离子簇"离子-离子发射离子-离子复合离子液体等离子体 Mg2+离子金属离子稀土离子离子交换锌离子铜离子铅离子再制造工程和技术

If we want to make it drugs, less 1-2 amino acids would cost a great difference, and the fewer number of amino acid synthesis more easily, for 3 years or access to clinical.

要想把它做成药物，少1到2个氨基酸都会在成本上有很大差别，并且氨基酸数越少越容易合成，争取在3年左右能够进入临床。

A new catalyst for methanol synthesis was prepared by alternant precipitation between acid and alkali.

采用酸-碱交替沉淀法制备了一种新型的低压甲醇合成催化剂。

The effects of various amount of molar ratio of acrylic acid to octadecyl alcohol,amount of catalyst and inhibitor,reaction temperature and time on the synthesis were investigated.

研究了丙烯酸与十八醇的摩尔比、催化剂和阻聚剂的质量分数、反应温度及反应时间对反应的影响，并用红外光谱对产物进行了表征。

The effects of various amount of molar ratio of acrylic acid to octadecyl alcohol, amount of catalyst and inhibitor, reaction temperature and time on the synthesis were investigated. The production was further verified with IR.

研究了丙烯酸与十八醇的摩尔比、催化剂和阻聚剂的质量分数、反应温度及反应时间对反应的影响，并用红外光谱对产物进行了表征。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失