Atmospheric precipitation

Magnesium trisilicate was synthesized by precipitation using Na2OnSiO2 and Mg (NO3)2 as raw materials.

由Na2OnSiO2和Mg(NO3)2经沉淀法合成了三硅酸镁，用450℃煅烧或酸化方法对合成的样品进行改性。

Magnesium trisilicate was synthesized by precipitation using Na2O·nSiO2 and Mg(NO3)2 as raw materials.

以Na2O·nSiO2和Mg(NO3)2为原料，经沉淀法合成得到三硅酸镁。

The company spirit of "lowest price, best quality, best service" business principles, the industry enjoyed a high reputation at the same time the Company also sells feed-grade ferrous sulfate, trisodium phosphate, barium hydroxide, barium sulfate precipitation and other inorganic products, is the number of brand-name products in central China Chemical Agents.

公司本着&价格最低、质量最好、服务最棒&的经营原则，在业界享有很高的声誉，同时本公司还销售饲料级硫酸亚铁、磷酸三钠、氢氧化钡、沉淀硫酸钡等无机产品，是全国多家名牌化工产品的华中地区代理。

It shows that the Taiwan topography influence on the movement and the central air pressure is salience. The topography force influence on the typhonic central intensity and unsymmertrical structure is very evident. The Taiwan topography is the primary reason for the low pressure in the windward mountain and high pressure in the leeward mountain. The topography is the primary reason for the peripheral precipitation reinfor4ce of the typhoon.

试验结果表明：台湾岛地形对台风&泰利&的移动路径和中心气压的影响不显著；地形的强迫作用对台风涡度场的中心强度和非对称结构有明显的影响；台湾岛地形是形成迎风坡诱生低压和背风坡诱生高压的主要因子；地形是台风外围降水加强的主要原因。

This study used precipitation method to synthesize titania gel, and then the gels were aged for various time to get two kinds of titania: unaged and aged gels.

本研究利用沈淀法制得二氧化钛胶体。部分胶体再利用陈化制程处理获得未陈化及陈化处理之两种二氧化钛。

Form scale parameter we can see that probability of precipitation of rain day become bigger on the middle and lower reaches of Changjiang River, and discrepancy between upriver and the middle and lower reaches of Changjiang River also become bigger, the other areas change unapparent.

两时段中国夏季雨日降水量概率分布的形状参数在无条件和分条件下值都小于1，且地理分布形式都基本一致。

As measurement results, of the four parameters involved, wind speed and precipitation varied significantly during the monitoring period, while temperature and pH value of rain water changed unapparently.

量测结果发现，测量期间风速、雨量等参数的变化幅度较大，温度及雨水pH值变化趋势则较不明显，但未足以在这些参数与水中氡浓度增加间建立显著的关系。

It is shown that the model can well simulates the daily runoff process in Hanzhong area and the model efficiency is similar to those of the lumped VIC and Xinanjiang Hydrological Model.Moreover,the proposed model considers the spatial variability of precipitation and underly...

结果表明，该模型能较好模拟汉中流域的日径流过程，其模拟精度与集总式VIC模型和集总式三水源新安江模型基本相当，但它充分考虑了研究流域内降水输入和下垫面条件的空间差异性，能够提供网格降水分布及流域内产汇流的分布状况，能进一步同中尺度MM5气象模式耦合，延长洪水预报的预见期。

Subsequently, undoped and doped MgO nano-powders were synthesized by modified precipitation or sol-gel method.

首先简要概述了MgO在环境净化和抗菌方面的研究进展以及纳米MgO的制备方法和掺杂改性的研究。

Compared of the efficiency of treating heavy metals in FGD wastewater with NaOH, Ca_2 and Mg_2. It indicated that NaOH was much efficient for precipitated waste water; Ca_2 was much efficient for unprecipitated waste water, the removal efficiency reached 98.4%. With the increasing of the main ion of Ca~2+, Cl~- in FGD wastewater, the efficiency decreased. It decreased 60% for the removing of Mn and 10% for Zn, Cd and Ni. The rectification coefficient token the Ksp of practical wastewater because it quite different with theoretic Ksp at different pH; the theoretic and practice addition were proportioned and it commonly reached 1:300.The precipitation efficiency of Na2S at different pH and the effect of Ca2+ was determined.

比较了NaOH、Ca_2和Mg_2处理脱硫废水时重金属的去除效果，分析了Ca~(2+)、SO_4~(2-)和Cl~-等主要离子的影响，结果表明：NaOH和Ca_2能有效处理脱硫废水中的重金属；对澄清废水而言，NaOH效果较好，对于未澄清废水而言，Ca_2效果更好，但去除废水中重金属的效率都能达到98.4%；随着Ca~(2+)、Cl~-等主要离子浓度的增大，中和作用去除重金属的效率降低，Mn最大降低60%，Zn，Cd，Ni降低10%左右；实际重金属浓度和用理论Ksp计算所得值差别很大，通过校正系数能有效计算实际重金属浓度；实现相同pH时氢氧化物的理论和实际投加量成一定比例，最大可达1：500。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。