Methods: Sulfate ion precipitation method was used.
方法：采用硫酸根离子沉淀法。
METHODS? Flocculating method and alcohol precipitation method were used.
采用醇沉法与絮凝法。
Magnesium titanate was obtained with special liquid phase precipitation method.
采用特殊液相沉淀法制备了镁的钛酸盐。
TiO_2 nanoparticles were prepared by chemistry precipitation method and sol-gel method.
用化学沉淀法和溶胶-凝胶法制备纳米二氧化钛颗粒；
Liquid precipitation method is one of the most popular methods of synthesis nanometer powders.
液相沉淀法是一种合成纳米粉体最为普遍的方法。
The rough extract of Pinggu mushroom PPO was obtained by ammonium sulfate precipitation method.
采用硫酸铵沉淀法得到平菇多酚氧化酶粗提液。
The square ratio method and basin precipitation method are commended for annual runoff calculation.
在年径流计算中，建议采用面积比法和流域雨量法。
The chemical precipitation method is feasible for extending the life of electroless nickel plating solution.
采用化学沉淀法延长化学镀镍液寿命是切实可行的。
The invention relates to a method adopting a sodium-salt precipitation method to prepare high-pure cefpirome sulfate.
本发明涉及一种钠盐沉淀法制备高纯度硫酸头孢匹罗的方法。
Zinc hydroxystannate coated nano-Mg(OH)2 was synthesized through homogeneous precipitation method and was applied to PVC.
通过均匀沉淀法制备了羟基锡酸锌包覆纳米氢氧化镁并将其应用到聚氯乙烯（PVC）中。
Homogeneous precipitation method plays an important role in the research field of preparation of mono-dispersed particles.
均匀沉淀法在制备单分散粒子的研究中占有重要的地位。
The crude polysaccharides from Enteromorpha linea were extracted by hot water and refined by ethanol precipitation method.
采用热水浸提、醇沉精制提取缘管浒苔粗多糖，并研究了其理化性质。
The preparation of nanometer copper powder by chemical reduction combined with homogeneous precipitation method is studied.
研究了以化学还原法与均匀沉淀法相结合的方法制备纳米铜粉。
Using barium hydroxide octahydrate and urea as raw material, barium carbonate is prepared by homogeneous precipitation method.
以八水氢氧化钡和尿素为原料，采用均相沉淀法制备了碳酸钡粉体。
A multi stage precipitation method of processing nickel waste galvanic sludges was proposed and verified on a laboratory scale.
提出了处理镍电镀污泥的多级沉淀法并在实验室规模得到了证实。
The commercial scale test was conducted for impurity molybdenum removal from tungstate solution by selective precipitation method.
对“选择性沉淀法从钨酸盐溶液中除钼”新工艺进行了工业试验。
Ultrafine SiO_(2 ) powders were prepared by High Gravity Reactive Precipitation method from water glass solutions and sulphuric acid.
以水玻璃和硫酸为原料，采用超重力反应沉淀法合成了超细二氧化硅粉体。
New catalysts suitable for hydrogenation of food oils have been prepared by means of precipitation method and by chemical mixing procedure.
研究了用沉淀法和化学混合法制备的用于食用油脂加氢改性的镍催化剂。
Two kinds of methods for the regeneration of magnesium nitrate solution are discussed, which are precipitation method and filter-press method.
讨论了硝酸镁溶液再生时所采用的两种方法：沉降法和压滤法。
The test results showed that raw material, precipitation method, feeding speed and Si modification had great influences on dispersion property.
结果表明，不同原料路线、不同制备方法、不同加料速度以及样品中是否含硅等都对酸分散性能有较大的影响。
The control method and mechanism of the liquid precipitation method including reaction, washing, drying and calcining are introduced in details.
对液相沉淀法合成纳米粉体的沉淀反应过程、洗涤过程、干燥过程以及煅烧过程等环节的控制方法及原理作了详述。
Both iron oxide and its supported gold catalyst for water-gas shift reaction were prepared under various conditions through co-precipitation method.
采用共沉淀法在多种条件下分别制备氧化铁及其负载金催化剂，测定其水煤气变换反应活性。
The process conditions of removing Fe From Cu leaching liquor were studied by oxidation precipitation method. Its industrial practice was introduced.
研究了氧化— 中和沉淀法从铜浸出液中除铁的工艺条件，并介绍了工业实践。
Moreover, the difference of the internal precipitation method and the external adding method for the second phase particles in steel was generalized.
同时，对钢中第二相粒子的内部析出法和外部加入法的差异做了简单的概述。
METHODS: Angiopoietin-1-PAxCAwt cosmid DNA and adenoviral DNA-TPC were cotransfected to 293 cells by the use of calcium phosphate precipitation method.
方法：人血管形成素- 1重组粘粒与DNA末端蛋白复合物混合后以磷酸钙共沉淀法转染2 93细胞。
The nano-sized clubbed ferric oxide red was prepared by homogeneous precipitation method, using urea as the precipitator introduced by dripping slowly.
以尿素为沉淀剂，采用缓慢滴加方式，用均匀沉淀法制备了纳米棒状氧化铁红。
Extra fine powder of acicular barium carbonate is prepared using barium chloride and carbamide as raw material by using homogeneous precipitation method.
以氯化钡和尿素为原料，采用均相沉淀法制备针状碳酸钡超细粉体。
Transitional metal complexes of pyromellitic acid were synthesized by homogeneous precipitation method, and characterized by TG, element analysis and FTIR.
用均匀沉淀法合成了均苯四甲酸过渡金属配合物。
Transitional metal complexes of pyromellitic acid were synthesized by homogeneous precipitation method, and characterized by TG, element analysis and FTIR.
用均匀沉淀法合成了均苯四甲酸过渡金属配合物。
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