介绍了一种聚丙烯酰胺粉末降尘技术。
A chemical dust reducing method for the polyacrylamide powder is recommended.
分析了喷雾帷幕降尘机理。
The mechanism of water-spray curtain technology was analyzed.
经分析，兰州城区自然降尘量占年降尘量的54%。
The result showed that the natural dustfall accounted for 54% of the total dust amount yearly.
介绍用气幕降尘系统解决机掘工作面的粉尘和瓦斯问题。
The dust suppression system with air curtain was first proposed to solve the problem of dust and gas in mechanized heading faces in this paper.
大气降尘中所含的镉和铅都对环境和人体健康造成危害。
Cadmium and Lead in dustfall is harmful to environment and human health.
大气降尘矿物成分和形貌特征是判别污染物来源的重要标志。
The mineral composition and morphology of atmospheric dust fall serve as important criteria in identifying pollution sources.
英国已经发现从日本受损的福岛核电站释放出来的放射性降尘。
RADIOACTIVE fallout from the stricken Fukushima nuclear plant in Japan has been found in the UK.
它们主要来源于母质，其次来自成土过程，降尘输入量极有限。
These clay minerals mainly come from parent material, a few from pedogenic processes, and dust input is minute.
主要原因是由于喷雾系统参数不尽合理，影响了喷雾降尘效果。
This was due spray system parameters is not very reasonable, affected the spray dust effects.
为了得到较好的降尘效果，喷嘴的设计要考虑自身的一些匹配关系。
To get a better effect of dust, Nozzle design should take into account a number of matches between their own.
防风效能、乱流交换强度、土壤湿度是决定降尘量大小的主要因子。
Wind-protection effect, turbulivity and soil moisture are the main factor which determine the falling dust capacity.
该装置对微细粉尘具有良好的降尘效果，降尘效率达到88%以上。
Experimental results also show such device has a better depression effect for fine dust, with the efficiency reaching more than 88%.
最后本文列举应用于工业降尘和农、园林喷洒农药的喷雾装置的实例。
At the end of this paper examples are cited as to where spraying devices are used to solve industrial laying the dust and spray insecticide of farming and gardens etc.
应用地理信息系统(GIS)技术分析了焦作市城区大气降尘污染状况。
The geography information system (GIS) technology was applied to deal with the pollution state of atmospheric dust fall in Jiaozuo City of Henan Province.
其中液体的抛撒是水雾捕尘的前提条件，是爆炸水雾降尘中的关键技术。
Liquid dispersal is precondition and is key technology in capturing dust by explosion water mist.
并将此技术用于煤矿井下采煤机和炮掘工作面，取得了很好的降尘效果。
It has tnade a good results to use the techniques on the shearers and in the heading faces in coal underground.
爆炸水雾降尘是解决城市建筑物爆破拆除产生爆破粉尘问题的一种新方法。
Capturing dust used of water mist resulting from explosion is a new way that solves problem of blasting dust from blasting demolishing city buildings.
哈尔滨市绿地土壤和植物的汞污染主要来源是工厂和交通尾气的大气降尘。
The main pollution source of the hydrargyrum of vegetable and soil is the atmosphere dust of factory and gas in the Harbin's greenbelt.
文中对通风降尘的系统设计、常用的冷却去灰设备的选用与使用进行了评价。
Evaluation has been done upon design of ventilation and dust collect system as well as selection and application of such conventional equipment.
选择兰州市典型沙尘和非沙尘天气收集两类降尘，并对其元素组成进行测定。
The dustfall samples collected under typical dust and non-dust weather were analyzed to examine their composition in Lanzhou.
选择兰州市典型沙尘天气和非沙尘天气收集两类降尘，并对其进行粒度测定。
The dustfall samples collected under typical dust and non-dust weather were made particle size analysis in Lanzhou.
分析了影响用水喷雾降尘的因素，从一个侧面探讨了磁化水喷雾降尘的机理。
The mechanism of dust supppression by magnetized water spray is probed by analyzing the factors affecting dust suppression by water spray.
本文主要介绍洞内施工通风的设计与计算、降尘技术与措施以及所取得的效果。
The design &- calculation of ventilation, dust - alleviation technology &- measures and the achievements during construction of tunnel are recommended in this paper.
连结这些点成三角形，求算这些点的趋势坐标及降尘值，最后计算大气降尘量。
Connecting every spot to form a triangle, and calculated trend coordinate and deposition value of the spots, finally calculated atmospheric dust deposition.
本文在对喷雾降尘机理深入分析的基础上，指出了常规喷雾降尘系统的主要弊端。
Based on deep analysis of spray dust-settling mechanism, the paper has put forward main malpractices of conventional dust control methods.
分析了尘粒起动过程，研究了尘粒粒径对爆破扬尘的影响，提出了爆破降尘措施。
The paper analyzes the movement of dust particles , studies the effect of dust particle size on dust dispersion and puts forward the measures of dust control.
京九铁路雷公山隧道机械化施工中应用施工通风降尘净化综合治理技术获得成功。
Comprehensive treatment technology of ventilation, dust -alleviation and purification was successfully applied in the mechanized construction of Lei Gongshan tunnel on Beijing-Jiulong Railway Line.
实际应用表明：除尘系统及降尘措施设计合理，运行可靠，具有较好的降尘效果。
The actual application showed that the design of dust removal system and dust prevention measures is reasonable, they operate reliably and have better dust removal effect.
在此基础上，利用该模型对西安市降尘污染引起的城市供水增加比例进行了模拟分析。
Based on the obtained results, a pollution rate econometric model of the city water supply increasing caused by dust was presented, which has been used for the study of Xi 'an water supply system.
介绍了综采割煤二次负压降尘装置结构、工作原理以及在朔里煤矿综采工作面使用情况。
Author introduces the structure and the working principle of the secondary dust removal device with negative pressure as well as the application to fully mechanized mining face in Shuoli colliery.
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