Atmospheric precipitation

That is to say, in SDS-CaCl_2 system, the crystallization phenomenon resulted from the solubility product of Ca_2 salt, is the main mechanism of surfaetant precipitation.

即可以认为，在SDS-CaCl_2体系中，Ca_2的溶度积效应导致的结晶现象，是表面活性剂沉淀的主要机理。

The principles of dissolution precipitation of second phase particles and autenite grain coarsening were studied and the solubility product of NbC in austenite as function of temperature was evaluated.

经试验确定钢的晶粒粗化温度为 110 0℃，t GC与第二相粒子的全固溶温度之间存在一定的线性关

The principles of dissolution precipitation of second phase particles and autenite grain coarsening were studied and the solubility product of NbC in austenite as function of temperature was evaluated.

研究了含铌 16 Mn钢奥氏体化过程中第二相粒子的固溶析出及阻止晶粒长大的规律，并给出了奥氏体中的 Nb C 固溶度积与温度的函数关系。

The pure and WO3-doped TiO2 nanoparticles photocatalyst was prepared by chemical precipitation, in which titanium tetrachloride was used as Ti-precursor, ammonia as precipitant and sodium tungstate as doping donor.

以TiCl4为钛前驱体，氨水为沉淀剂，钨酸钠为掺杂体给体，采用化学沉淀法，制备了纯的与WO3掺杂的TiO2纳米光催化剂。

The comprehensive electroplating wastewater from a large-scale electroplating industrial area in Shenzhen has been studied. Its treatment method has been investigated. It is ascertained that acidification-oxidation decomplexation and chemical precipitation of hydroxide and sulphide process are used. The best decomplexation agent chosen is bleaching liquid NaClO. The operational parameters are as follows: dosage of bleaching liquid 1.2 mL/L wastewater, reaction pH 2.3, and reaction time 2 h. Under these conditions, the requirements of the discharge standard of electroplating wastewater can be met effectively by adjusting the pH and adding sodium sulphide, overcoming the deficiencies of traditional processes of electroplating wastewater treatment.

以深圳某大型电镀工业园产生的综合电镀废水为研究对象，对其处理方法进行了探索，确定了酸化-氧化破络反应及氢氧化物和硫化物共沉淀的处理方法；通过实验选择漂水为最佳破络剂，最佳破络操作参数为漂水用量1.2 mL/L，反应pH为2.3，反应时间2.0 h，在此基础上调节pH并加入硫化钠即可实现电镀废水的达标排放，克服了传统电镀废水处理工艺的不足。

In this paper, a self-made device that is differential reactor was used in the study of the effect of potassium ions on the kinetics of crystal growth in sodium aluminate solutions seeded precipitation.

本文利用自制的微分反应器研究了钾离子浓度对铝酸钠溶液种分过程晶体长大动力学的影响。

The experimental research on the carbonization precipitation of sodium aluminate solution with high content Al2O3 (170~190g/L) is carried out.

摘 要：对高浓度铝酸钠溶液碳酸化分解过程中Na2O的析出行为和产品中Na2O的存在形式进行了实验研究。

In order to get sandy alumina ,the new technics of producing sandy alumina with two-stage precipitation of high concentration sodium aluminate solution.

采用高浓度铝酸钠溶液研究了添加剂存在的条件下两段法生产砂状氧化铝的新工艺。

The effects of a nonionic surfactant on the seeded precipitation rate of sodium aluminate solution, the particle size and morphology of the products were studied.

采用对比实验法研究非离子型表面活性剂对铝酸钠溶液晶种分解率及其产品粒度和形貌的影响。

The influence of a series of polymers with active groups including polyalcohols, polyamide and polysaccharide on the seed precipitation of sodium aluminate solution was investigated.

摘 要：研究了聚醇、聚酰胺和聚糖等一系列含有活性基团的聚合物对铝酸钠溶液种分过程的影响。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"