沉淀剂

Red phosphor Al2O3:Eu was prepared by co-precipitation method using mixture of ammonium hydrogen carbonate and ammonium water as complex precipitator.

用碳酸氢铵和氨水混合溶液作为复合沉淀剂制备了Al2O3：Eu 红色荧光粉体。

Mg2 was prepared by addicting lime milk to middling concentration brine of brine pan.

以盐田中度卤水为原料，石灰乳为沉淀剂制备Mg2粉体。

Nanosized titania particles consisting of anatase, rutile and brookite phases were synthesized under solvothermal conditions with different alcohols as solvents, hexamethylene tetramine as precipitant as well as precursor of titanium trichloride.

采用不同的醇溶剂，以六亚甲基四胺为沉淀剂，以TiCl3为前驱体，通过溶剂热的方法控制合成出纳米级的锐钛矿型、金红石型和板钛矿型的二氧化钛。

Following optimal operation conditions are found through orthogonal tests: the excess coefficient of added precipitator 1.2~1.3, the pH value at the reaction end 3~4, the reaction time 30min and the reaction temperature 50℃.

通过正交实验，找出了从提取草酸的优化操作工艺条件：沉淀剂的加入过量系数为1.2~1.3，反应终点pH值3~4，反应时间30min，反应温度50℃。

But the technics of magnesian industry is draggle, high economic costs, high energy costs, less kinds of products. So we can not compete with the developed countries and lose much of markets.

这种生产工艺技术在国外很少有报道，国内近年来虽有些试验研究，但大多停留在试验阶段，在山东省虽有些小厂用碳酸氢铵作沉淀剂生产轻质氧化镁，但工艺不合理，能耗高，经济效益差，大多处于开开停停的困境中。

The flocculation reaction could be evidently devided into two stages:the flocculation of leaf protein and the precipi-tation of flocculate.

利用乳酸发酵酸作叶蛋白的沉淀剂，其聚沉反应可明显分为叶蛋白聚凝和聚凝物沉降两个阶段。

NiO nanoparticles were prepared by a homogeneous precipitation method with an aqueous solution of nickel nitrate hexahydrate and urea. The effects of Ni(NO3) 2·6H2O ratio, reaction temperature and heat treating temperature on NiO yield and mean size were discussed.

文中采用Ni(NO3) 2·6H2O为主要原料，CO(NH2 )2 为沉淀剂制备了球片状纳米NiO粒子，并研究了反应物料配比、反应温度以及煅烧温度等条件对产品粒径和产率的影响。

That urine and hexamethylenetetramine taking the place of sodium carbonate as the precipitants could also produce 1D Co3O4 showed lights on understanding the mechanism of formation of 1D structures.

以六次甲基四胺、尿素等代替Na2CO3溶液作为沉淀剂，均得到了一维纳米结构的Co3O4，表明CO2-3在水镁石CoO2层间的嵌入是得到一维结构水热产物的关键。

Using hydrofluoric acid and sodium carbonate as sediments, removal of metal impurities from WPA was studied.

采用氢氟酸和碳酸钠作为沉淀剂，对湿法磷酸进行了脱除金属杂质的试验研究。

With the material of magnesium chloride and sodium hydroxide,Magnesium hygdroxide was produced by adding Magnesium hygdroxide seeds .

以氯化镁为原料，以氢氧化钠为沉淀剂，采用加入氢氧化镁晶种的方法制备氢氧化镁。

What would he tell Judith and the children?

他将怎样告诉朱迪丝和孩子们呢？

I this is at that time, the opinion with peacockish true girl is full of in a heart.

这就是当时的我，一个心中布满虚荣的女孩子真实的想法。