本文主要对成都经济区近地表大气尘中主要的20种元素的空间分布特征进行研究。
The thesis mainly discusses space distribution character of 20 kinds of element of the air dust near the ground in Chengdu economic area.
通过对不同处理方式处理后的水果中重金属的分析表明，土壤吸收和大气尘降是农作物中重金属的主要来源。
According to the heavy metal contents in the fruits, soil absorption and atmospheric dust become the main sources of heavy metal pollution in crops.
在对大气尘过滤试验结果进行整理分析的基础上，对采用洗涤式金属填料空气过滤器去除油雾的可行性进行了分析。
Based on the analysis of test result on filtration of airborne particle, the feasibility on removal of oil mist by using wash-type metal filler air filter is analyzed.
星尘的构成是超巨星表面膨胀的大气向宇宙散发的物质，是一颗大质量恒星进化的最后阶段。
The dust is likely formed as the swollen atmosphere of the supergiant sheds material into space, a final phase in the evolution of a massive star.
除非发生了大爆炸，将放射性物质送入高层大气，否则日本产生的放射尘是不会越过太平洋的。
Unless a large explosion sends radioactive material high into the atmosphere, most of the fallout from Japan will not make it across the Pacific Ocean.
结果表明，大连海域大气气溶胶物质主要来自海水、气态物、土壤尘、煤烟尘、燃油灰和工业废料。
Atmospheric Marine aerosol was derived from seawater gaseous substance soil dust ash fly from burning coal ash fly from burning fuel and industrial waste at dalian sea area.
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.
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.
大气粉尘降落是地球表层地—气系统物质交换的一种形式，降尘过程有重要的环境指征意义。
Aeolian dust deposition is one of the main processes for the exchange between atmosphere and earth-surface, which indicates important environmental information.
把焊接电弧作为一个发尘点源，应用大气湍流扩散理论，建立了焊接过程中烟尘扩散的数学模型。
A mathematical model of fume diffusion in welding process was founded by considering welding arc as a spot source of generating fume and supplying the turbulent diffusion theory.
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.
之后采用近地面尘降模型，计算了这类污染源在不同气象层结下的扩散状况，得出其污染浓度对大气环保浓度的分担率。
Then, the concentration under different wind diffusion condition are analysized by using ground pollution mode so that the ratio of contribution to the total pollution limit is obtained.
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.
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.
总结出省内不同区域内尘污染时空分布特征，进一步阐明尘类污染是影响我省城市大气环境的重要指标。
The features of the dust pollution distribution over time and space have been summarized of different areas in Gansu province.
且有机尘女工呼吸道症状多，大气道受损明显，而无机尘女工，较多见的是小气道受损。
The respire symptoms are significant in large airflow track due to organic dust and in small airflow track due to inorganic dust.
研究以野外观测为主要手段，分析了不同高度大气降尘与不同下垫面沙粒的粒度特征及二者间的关系。
The grain characteristic of falling dust and different height surface and their relationship were analyzed by the field observation data.
大气污染物中，对健康产生急性毒性作用的主要是气相污染物，其次是尘。
The acute influence comes from gaseous pollutants and dust is the second.
对铁岭市2006年和2007年的环境空气质量进行对比分析，其中包括大气质量综合污染指数、可吸入颗粒物、二氧化硫和二氧化氮、降尘等指标的统计分析。
Comparative analysis of air quality indexes between the year of 2006 and 2007 of Tieling is conducted including air quality comprehensive pollution index and PM10 and SO2 and NO2 and fall dust.
干旱多尘土季节大气中的铅尘大于雨季。
In drought season lead-dust in atmosphere is larger than that in rainy season.
提出，加强烟尘污染治理，扩大绿化面积，改变局部小气候，可以有效地降低降尘量，改善该市的大气环境质量。
The paper also pointed out that controlling smoke pollution, increasing green areas and changing local climate can decrease amount of descended particles and improve the atmospheric...
提出，加强烟尘污染治理，扩大绿化面积，改变局部小气候，可以有效地降低降尘量，改善该市的大气环境质量。
The paper also pointed out that controlling smoke pollution, increasing green areas and changing local climate can decrease amount of descended particles and improve...
尘归尘，土归土重又化作粪土回归到大气里。
Dust is dust, soil return to the soil again into a dirt back to the nature.
尘归尘，土归土重又化作粪土回归到大气里。
Dust is dust, soil return to the soil again into a dirt back to the nature.
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