查询词典 sulphuric acid

Besides, the main physiochemical indexes of new craft liquor including alcohol content, total acid, total ester, the content of ethyl caproate, solids, and other additives must meet the requirements of national standards.

生产的新工艺白酒的主要理化指标如酒精度、总酸、总酯、己酸乙酯含量、固形物及卫生指标和调加的其他添加剂必须符合国标要求。

Xifeng liquor is famous for it's shorter fermentation period in liquor－making field.But because of this typical craft,Xifeng liquor has lower content of total ester and total acid,which has disadvantage to aroma producing.Especially ,the amount of ethyl caproate is lower evidently than that of the main products in the market.

摘 要：西凤酒以发酵期短而在酿酒界闻名，西凤酒工艺的典型性决定了西凤酒总酯含量和总酸含量低，不利于多种呈香物质的放香，特别是己酸乙酯含量远低于目前市场上俏销的主流产品。

The separation and determination of caproic acid,1-octanol and octyl caproate by high performance liquid chromatography on the Kromasil C18(150 mm×4.60 mm,5 μm) column with V∶V=95∶5 as mobile phase and with refractive index detector were also studied.

按常规有机合成方法合成了己酸正辛酯，采用在Kromasil C18(150 mm×4.60 mm，5 μm)柱上，以V∶V=95∶5为流动相及示差折光检测器的反相高效液相色谱法，30 ℃分离和测定了己酸、1-辛醇及己酸正辛酯。

Insecticidal sucrose octanoate and sucrose caproate were synthesized by transesterification method or reaction of acid chloride with sucrose.

分别以酯交换法和酰氯法合成了辛酸蔗糖酯和己酸蔗糖酯两种杀虫活性蔗糖酯，其中酯交换法产物单酯含量高，而酰氯法反应速度快。

In the different precursors, sodium caproate, sodium pyruvate, sodium succinate and sodium citrate could increase ABA production, but calcium propionate and amino acetic acid could inhibit ABA production.

微生物发酵法是近年来新兴起的脱落酸生产方法，二十世纪九十年代初，日本人应用固体发酵技术，以灰葡萄孢发酵生产ABA获成功[2 ] 。

Capsid The protein coat of a VIRUS, which surrounds its nucleic acid.

衣壳：病毒的外壳蛋白，包围着核酸。

Capsid proteins are involved in recognition and infection of the host and can be used to identify the virus by serological means or amino acid sequencing.

衣壳蛋白与寄主的识别和感染有关，还可以通过血清学的方法或氨基酸序列来识别病毒。

RESULTS: Using LXR-deficient mice, we showed an alteration of the lipid composition of the caput epididymidis as well as a significantly decreased expression of the genes encoding SREBP1c, SCD1 and SCD2, involved in fatty acid metabolism.

结果：在LXR缺失的小鼠中发现附睾头部的脂质组分发生改变，有关脂肪酸代谢的基因如SREBP1c， SCD1和SCD2的表达有明显的下降。

Moreover, we found that N-heterocyclic carbene could served as an efficient and novel catalyst for the reactions of aziridines with silylated nucleophiles or acid anhydrides.

随后，我们发现氮杂环卡宾也可以作为一种有机小分子催化剂，分别催化各类硅试剂或酸酐对氮杂环丙烷化合物的开环。

Based on the orthogonal experiment, the optimum synthetic conditions for dimethyl fumarate were as follows: the molar ratio of carbinol to fumaric acid was 6∶1, mass of the catalyst was 1.0%, the volume of the water removing reagent benzene was 10 mL, and the reaction time was 3 h.

催化合成富马酸二甲酯的最佳条件为： n∶ n=6∶1，催化剂用量为1.0%，带水剂苯用量为10 mL，反应时间为3 h，催化剂重复使用7次，酯化率大于90%。

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。