查询词典 sulphur chloride

Castor seeds were degreased with 3 kinds of solvents including petroleum ether,aether and methylene chloride,and ricins were extracted from the defatted castor cake with acetic acid solution.

方法用石油醚、乙醚、二氯甲烷3种溶剂分别对蓖麻粗籽进行脱脂后，用醋酸水溶液从脱脂的蓖麻饼中提取蓖麻毒蛋白，通过杀鼠活性试验比较3种蓖麻粗毒蛋白的杀鼠活性。

In the early 1960s, by means of the covered the paper and vinyl chloride, and so on have adhesive film for the machining of the last hop.

60年代初，出现了通过覆膜机把纸张和氯乙烯等塑料薄膜有黏合剂进行昨合的加工方式。

The method to purify compound 4 was resolved. A novel method to prepare the intermediate from phenylacetyl chloride was selected in this paper. The facile synthetic scheme put forward in this work is simple to operate and has the characteristic of high yield and good feasibility.

解决了终产品4的分离纯化难题，采用生成衍生物再进行水解的方法达到了纯化目的；提出了合成中间体3-羟基-4-苯基-吡喃-2，5-二酮(7)的较为新颖的方法，操作简单，各步中间体无需作进一步纯化便可进行下一步反应，从而得到了结构较新颖的终产品4。

In this paper, cuprous chloride was prepared by sulfite-reduction method with copper sulphate,which was obtained from copper-containing plating wastewater treatment.

研究了利用处理含铜电镀废水得到的硫酸铜，采用亚硫酸盐还原法制备氯化亚铜。

The dual, ternary and quarternary alloy zinc powder of Zn, Pb, Bi, In were prepared by using the negative electrodeposition in the chloride electrolyte system in this paper.

本文采用阴极电沉积的方法在氯化物电解液体系中分别制备出Zn，Pb，Bi，In的二元，三元和四元合金锌粉。

This study was conducted to quantitatively evaluation the deterioration of concretes and effect of chloride on damage.In this paper,2 sets of plain concretes with W/B being 0.35 and 0.45 respectively,and 2 series of concretes with 20% and 30% replace ratio of fly ash,were made.Two kinds of corrosion system were used;one was concrete stored in corrosion solution for 500 d,another was drying-immersion cycles.

研究了水胶比为0.35和0.45的普通混凝土和粉煤灰掺量为20%和30%的粉煤灰混凝土在2种溶液(5%Na2SO4溶液，3.5%NaCl+5%Na2SO4复合溶液)和2种腐蚀制度下各混凝土的损伤失效规律、特点及氯盐对混凝土硫酸盐损伤的正负效应。

D Test for water vapour 水蒸气的测试: H 2 O can turn dry cobalt chloride paper form blue to pale pink.

水可把乾燥的氯化钴试纸由蓝色变成粉红色。

Polyaluminium chloride; grey water of paper industry; base saturability

聚合氯化铝，造纸中段水，盐基度

Gas membrane permeation and membrane absorption have a lot of advantages, such as little investment, low energy use, convenient use and simple operation, in addition, membrane absorption also has some merits including surprisingly high interfacial area, absence of emulsions, no unloading at low flow rates, no flooding at high flow rates. So gas membrane permeation and membrane absorption are used for separation propylene / hydrogen chloride in this paper.

气体膜渗透法和膜吸收法具有投资少、能耗低、高效、使用方便和操作简单等特点，此外膜吸收法还有传质面积大的优点和没有雾沫夹带、液泛、沟流、鼓泡等现象发生，因此本文采用气体膜渗透法和膜吸收法分离丙烯和氯化氢混合气。

The mechanical strength, gluing performance and decay-resistance of 4-year-old bamboo wood treated with chitosan copper/zinc complexes, CCB (copper, chromium, boron composites), ACQ and zinc chloride were reported in this paper.

以4年生新伐毛竹为试材，以褐腐菌棉腐卧孔菌为试菌，对壳聚糖铜配合物、壳聚糖锌配合物及相应的金属盐和铜铬硼、ACQ处理材的耐腐性能、力学性能及胶接性能进行研究。

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。