文章详细信息 关键词： 细颗粒物;;机动车尾气;;时空分布 [gap=1369]Keywords: fine particles,vehicle exhaust,space-time distribution
基于54个网页-相关网页
据健康专家介绍，fine particles（细微颗粒）粒径小，富含大量的有毒、有害物质且在大气中的停留时间长、输送距离远，因而对人体健康和大气环境质量的影响更大。
基于48个网页-相关网页
后者属于细颗粒的范畴，通常也称之为微细颗粒(Fine Particles)。 另外，美国环保署对大气中的颗粒物进行了更加细致的定义，分别为：超粗颗粒 (Super-coarse Particles, d pa >10)，粗颗粒(Coa...
基于20个网页-相关网页
fine particles fiuidization 细粒流态化
Supersonic Fine Particles Bombarding 超音速微粒轰击技术 ; 超音速微粒轰击
evntrol technology of fine particles 微粒控制技术
spherical NiO fine particles 球形氧化亚镍微粉
control technology of fine particles 微粒控制技术
Dust respirators for fine particles 精细微粒防尘呼吸器
International Fine Particles Research Institute 粒研究中心 ; 国际超微颗粒研究中心
Higher relative humidity will promote the formation of airborne fine particles. Also it will affect the turbidity, causing the decline of visibility directly.
风速和温度的升高会影响增强空气的对流条件,为污染物提供良好的扩散条件；相反地,相对湿度的升高则会促进细粒子的生成长大,更会影响大气的浑浊度,直接造成能见度的下降。
参考来源 - 广州大气细粒子粒径分布和化学成分对能见度影响的研究The major chemical composition of fine particles which reduced atmospheric visibility are respectively sulfate, nitrate, organic matter, elemental carbon.
4.细颗粒物化学成分中,影响广州市大气能见度降低的主要影响因子为硫酸盐、硝酸盐、有机物、元素碳。
参考来源 - 广州大气细粒子粒径分布和化学成分对能见度影响的研究Hence, how to improve the quality of fluidization of fine particles becomes a hot topic today.
因而如何改善超细颗粒的流化性能成为了当前人们关注的焦点。
参考来源 - 采用添加组分改善超细颗粒流态化性能的研究The zinc oxalate fine particles were prepared by ELM systems in this work.
本研究使用乳化液膜体系制备草酸锌微细颗粒。
参考来源 - 乳化液膜法制备草酸锌微细颗粒的研究However, following the rapidly growing application of the ultra-fine particles in industry, fluidization of the ultra-fine powders has become a significant emerging field in recent years. And how to improve fluidization quality is a key point for further investigation.
但近年来，随着超细粉体技术的发展以及对超细粉加工的需要，超细粉流态化技术的研究和应用日益受到人们的关注，特别是如何改善流化质量正逐渐成为研究的重点和热点。
参考来源 - 超细粉在导向管喷动床中的流化行为·2,447,543篇论文数据，部分数据来源于NoteExpress
These fine particles penetrate deep into the lungs.
这些微小的尘埃可深深地吸入肺部。
It carries fine particles of sand, which bombard exposed rock surfaces, thereby wearing them into yet more sand.
它携带着细小的沙粒，这些沙粒会轰击裸露的岩石表面，从而把岩石磨成更多的沙子。
And here is that tube which has these fine particles.
这是装有这些微粒的试管。
Some gardeners use leaf mulch fine particles of leaves instead of wood mulch around trees, especially young trees.
VOA: special.2009.06.30
Carbon is driven out, and fine particles of almost pure silica remain.
VOA: special.2009.12.01
I can see footprints of my boots in the small,fine particles.
VOA: special.2009.07.15
应用推荐