查询词典 precipitation

The GPI method assumes that the cloud with brightness temperature below 235K would be rainy, then the area of rain is equal to the coverage of cold cloud below 235K. It may be suitable for most part of China at tropic and subtropic area. But for northern part and plateau area of China, the GPI overestimates precipitation due to lack of enough water vapor.

4GPI方法假定云顶亮温低于235K时，将产生降水，降水区的面积就等于低于235K亮温覆盖的区域，这在热带和中纬度大部分地区可能是适用的，但对我国北方干旱地区以及高原地区，则存在明显的高估，表明有云不一定会有雨，为了修正西北部降水的系统性高估，引入相对湿度修正因子，即在一定温度条件下，加上一定的湿度条件，才能形成降水。

Bi and As can be separated in the arsenic contained waste water of a smelter through Sulfuration precipitation and alkali leaching.

研究了铜冶炼厂含砷废水的硫化处理及其产物硫化砷渣的碱性浸取。

The separation mechanism of nickel and iron by sulphide precipitation and process influence conditions were investigated.

研究了硫化沉淀分离镍与铁的分离机理及工艺影响条件。

The productive climate conditions, especially precipitation and soil moisture in winter wheat and summer corn growing stages were analyzed in this article.

本文对河南省冬小麦、夏王米生产的气候条件进行了分析，着重分析了降水和土壤水分对两种农作物生产的影响。

Through the analysis on the history data, we find out the rule that precipitation how to effect on wheat yield in summer, and how to estimate the wheat yield trend of next year. It is important to direct the wheat production, and to promote the wheat yield.

通过对历史资料的分析，找出夏季降水对小麦产量影响的一般规律，进一步找出利用夏季降水的丰缺程度对翌年小麦产量趋势作出预测的方法，对于指导小麦生产趋利避害，巧用气候资源，合理组装小麦生产的配套技术，以及最大限度的利用自然降水资源，促进小麦单产大幅度提高，具有十分重要的意义。

Thus, the condensate supercooling will dissolve the some precipitation gas in the condensation water again and increase the oxygen content.

在核电厂中，对二回路水质的含氧量提出了更高的要求。

Based on fundamental of chemical precipitation,the superfine manganese sulfide was prepared by designed different technologies and conditions.

本文基于化学反应沉淀法的基本原理，通过设计不同的工艺路线和工艺条件制备硫化锰微细粉末。

Precipitation from the supersaturated solution of material process.

从过饱和溶液中析出物质的过程。

In this thesis, three major achievements were made in theoretical study: conditions and rules for preparing nano-powders by chemical precipitation are analyzed from the point of view of thermodynamics and kinetics, the principle, standards and experimental method for the aqueous dispersion of nano-scaled metal oxide powders were proposed and verified, mathematical model of nano-filming addition of dopants by chemical coprecipitation was established. In experimental research, nm-ZnO, nm-Bi〓O〓, nm-Co〓O〓 and nm-MnO powder with spherical shape, narrow particle size distribution and small particle size were prepared successfully, highly stable and dispersive aqueous suspensoid of nm-ZnO, nm-TiO〓, nm-Co〓O〓 and nm-MnO powder were prepared successfully and surface modification on these nano-powders was also achieved, 0-3 nanocomposite ZnO varistors with nm-ZnO, nm-TiO〓and nm-MnO respectively were prepared successfully by conventional mechanical attrition, and exhibited much better electrical properties than those of conventional varistors.

综上所述，本文在理论研究方面取得了三项成果：（1）从热力学和动力学角度推导并分析了液相化学沉淀法制备纳米粉体的反应条件和规律，（2）提出了纳米氧化物的水分散体系的设计原理、规范和通用实验步骤，（3）提出了共沉淀的数学模型和计算方法；在实验方面所取得的成果有：（1）成功制备了粒度小、分布窄、形貌对称的纳米氧化锌、纳米氧化铋、纳米氧化钴和纳米氧化亚锰，（2）成功地制备了纳米氧化锌、纳米二氧化钛、纳米氧化钴和纳米氧化锰的高稳定分散悬浮液并实现了干粉体的表面改性，（3）成功地进行了纳米氧化锌、纳米二氧化钛和纳米氧化锰对压敏电阻的0—3复合掺杂实验，试样性能远优于常规压敏电阻，为实现压敏电阻的高能高压化提供了新的方法和思路。

, 80g/l HPZ-Ti solution can be stored stably for more than one year at atmospheric temperature (the highest temp. is 35℃), the precipitation point pH of 0.05M HPZ-Ti solution exceeds 4. 6, the stability can meet the tannage need. The tanning power of HPZ-Ti tanning liquor is better than that of any other titaninum tanning liquors which have been researched.

与钛配位能力适中，在革内有较好的渗透性，HPZ—Ti配合物与胶原有较大的反应活性，HPZ与Ti以0.45mol HPZ/mol Ti比例混和，浓度为80g/l时，在室温下（最高温度35℃）可稳定存放一年以上，浑浊点pH值达4.60以上，其鞣性优于其它配体蒙囿的钛溶液和其它方法制备的钛鞣剂。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐