查询词典 sulphuric acid

Caffeic acid O-methyltransferase is an important methyltransferase in lignin biosynthesis.

咖啡酸3-O-甲基转移酶是木质素合成途径中的一个重要甲基转移酶。

The structure of the compound 370G uesd in this experiment is derived from the modification of caffeic acid phenethyl ester.

实验中所用到的化合物370G，其结构是修饰自咖啡酸苯乙酯(Caffeic acid phenethyl ester，CAPE)。

This study was aimed to investigate the effect of caffeic acid phenethyl ester on inducing apoptosis in human pancreatic cancer cells.

对於中度及低度分化人类胰脏癌细胞株BxPC-3与PANC-1，我们以trypan blue dye exclusion test来侦测咖啡酸苯乙酯对细胞株生长的抑制作用。

The result indicated :(1) phosphoric acid could effectively reduce the pH value in calcareous soil .

试验结果表明：①磷酸能有效地降低石灰性土壤的pH值，在本试验条件下，要使土壤pH值由8.89降低到6.0左右，最佳酸用量为3.27g。

The organic calcium can be acquired by two ways: one is to calcine, and the other is to add organic acid into eggshell power directly. The eggshell is a good source of calcium in food, and has broad development prospects.

通过煅烧法和直接反应法可以将蛋壳中的碳酸钙转化为有机酸钙，蛋壳是一种很好的食品级绿色钙源，发展前景广阔。

The effects that alcohol activates Ca in different consistence , different calcine time , different ratio of and lactic acid extract Ca from oyster shell were studied in this paper.

为充分利用牡蛎壳的钙资源，对乙醇在不同浓度、不同烧煮时间、不同配比条件对牡蛎壳粉中钙的活化效果及不同浓度的乳酸对活性钙的提取效果进行了研究。

The effect of several factors on calcium carbonate inhibitionbehavior of polyaspartic acid is discussed in this paper.

结果表明：在低投加量的情况下，分子量为4000的聚天冬氨酸具有最为优良的阻垢性能。

"Cyanamidealsocyanamid:a caustic acidic crystalline compound, NHCNH, prepared by treating calcium cyanamide with sulfuric acid."

"氨基氢：一种腐蚀性的酸性晶体化合物，NHCNH，可通过硫酸作用于氢氨化钙制取。"

At present, I plant the production of calcium fluoride products can meet the sulfuric acid, metallurgy, ceramics, such as the needs of different industries.

目前，我厂生产的氟化钙产品可满足制酸、冶金、陶瓷等不同行业的需要。

Tieguanyin fluoride in about 40% to 80% dissolved in water, with the teeth vulnerable combination of calcium, in the teeth formed on the surface layer of calcium fluoride, played the role of anti-acid anti-caries.

铁观音中的氟化物约有40%～80%溶解于开水，极易与牙齿中的钙质相结合，在牙齿表面形成一层氟化钙，起到防酸抗龋的作用。

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。