查询词典 sulphuric acid

Under different conditions, acetic acid conversion and the yield of butyl acetate were close or reached to 100% in a short operating time.

在不同反应条件下，较短的反应时间内，乙酸的转化率、乙酸正丁酯的产率都能接近或达到100%。

A method of synthesis of butyl isobutyrate catalyzed by amidosulphonic acid has been studied.

以氨磺酸为催化剂催化合成了异丁酸丁酯，确定了酯化优化条件。

China,calcium carbide, acetic acid,vinyl acetate,pentaerythrite,polyvinyl butyral resin,polyvinyl butyral film,"AVS"paint for interior and exterior walls,cement,carbonized bricks etc,over 40 chemicals and building materials.

主要有聚乙烯醇系列产品、聚乙酸乙烯酯乳液系列产品、电石、冰醋酸、醋酸乙烯、季戊四醇、聚乙烯醇缩丁醛树脂、聚乙烯醇缩丁醛胶片、AVS内外墙涂料、水泥、碳化砖等40多种化工产品和建材产品。

The company,covering 4.2 square km,has eleven branch and subsidiary companies,and 4,737 employees,it mainly produces polyvinyl alcohol series,polyvinyl acetate emulsion ( commonly called"bairuijiao"in China),calcium carbide, acetic acid,vinyl acetate,pentaerythrite,polyvinyl butyral resin,polyvinyl butyral film,"AVS"paint for interior and exterior walls,cement,carbonized bricks etc,over 40 chemicals and building materials.

主要有聚乙烯醇系列产品，聚乙酸乙烯酯乳液系列产品，电石，冰醋酸，醋酸乙烯，季戊四醇，聚乙烯醇缩丁醛树脂，聚乙烯醇缩丁醛胶片，AVS内外墙涂料，水泥，碳化砖等40多种化工产品和建材产品。

Preparation of butyric acid by oxidation of butyraldehyde was studied.

在反应温度 50～ 60℃，氧醛摩尔比 0 。75～ 0 。875，催化剂与正丁醛的质量比 0 。1 %～ 0 。2 %，反应时间为 3 h左右的优化的工艺条件下进行了正丁醛氧化制正丁酸的研究。

Any of three glycerides of butyric acid .

异氰酸形成的一种盐或酯。

The function of γ-amino butyric acid and its concentrating ways were briefly introduced.

简要论述了γ-氨基丁酸的作用及其富集方法。

A salt or ester of butyric acid .

棕榈酸的甘油三酸酯。

Many times, the active ingredient of such preparations is GABA, or gamma amino butyric acid.

多次的此类的准备工作的有效成分是 GABA 或伽玛氨基酸丁。

The Kinetics and mechanism of esterification of α-methyl butyric acid with ion exchange resin are studied.

研究利用离子交换树脂催化α－甲基丁酸酯化反应的动力学和反应机理。

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。