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1)  fine particle
细粒子
1.
Relationship between aerosol fine particle and visibility;
气溶胶细粒子与能见度的相关性
2.
The dominant ions in the fine particle were SO~(2-)_4,NO~-_3 .
细粒子的主要离子成分是SO42-、NO3-和NH4+,与温度、湿度和光照等条件相关,推测主要来自农田释放的NH3与光化学生成的酸性物种的反应。
3.
By analysis, the results indicate that there is “two modes" in the diameter range of the fine particle, one called “condensation mode" and another called “droplet mode",.
通过分析获得了颗粒物及其离子成分的质量浓度谱分布;发现北京城区颗粒物中细粒子占PM10的40%~60%,已经成为PM10的主要组成部分;但是细粒子和粗粒子的质量浓度与PM10都有很强的相关性(R2>80%),仍然可以通过控制粗粒子的浓度来降低PM10的浓度;在细粒子浓度高于70μg·m-3时,硫酸盐、硝酸盐和铵盐在细粒子中所占比例之和大于70%,是颗粒物浓度升高的主要因素;并且观测到颗粒物的质量粒径谱分布在积聚模态存在2个亚模态以及积聚模态出现在1·0~1·8μm的粒径段的谱分布;对于积聚模态峰值出现在1·0~1·8μm粒径段的原因,进行了初步分析。
2)  fine particles
细粒子
1.
Rapid collection of fine particles in the atmosphere and on-line measurement of chemical composition;
大气细粒子的快速捕集及化学成分在线分析方法研究
3)  superfine particle
超细粒子
1.
Tetraammine-cis-bis(5-nitro-2H-tetrazolato-N2) cobalt (Ⅲ) perchlorate (BNCP) superfine particles were obtained with fluid milling and cryogenic drying methods.
采用机械研磨和低温干燥的方法获得了高氯酸·[四氨·双(5-硝基四唑)]合钴(Ⅲ)(BNCP)的超细粒子
2.
Adopting superfine particle as catalytic agent will exert special influence upon activity and selectivity of the catalytic agent.
对超细粒子催化剂的应用现状作了详尽的阐述,分析了超细粒子催化剂的制备特点,指出了其发展方向。
3.
Tetraammine-cis-bis(5-nitro-2H-tetrazolato-N2) cobalt(Ⅲ) perchlorate(BNCP) superfine particles were obtained by fluid milling and cryogenic drying methods with absolute ethanol as non-solvent.
双(5-硝基四唑)]合钴(Ⅲ)(BNCP)的超细粒子,测试了其粒度、比表面积、感度、热性能。
4)  fine particles(PM2.5)
细粒子(PM2.5)
5)  Ultrafine particle
超细粒子
1.
Preparation and application of catalyst of high dispersing,supported,ultrafine particle;
高分散负载型超细粒子催化剂的制备及应用
2.
In this paper the properties of ultrafine particle catalysts were investigated and some of available preparation methods discussed.
介绍了超细粒子催化剂的性质及现有的一些制备方法,并对制备方法的优缺点进行了评价。
3.
Then ZrO_2 was deposited on these magnetic Fe_3O_4 cores by precipitation of ZrOCl_2·8H_2O with NaOH solution to become ultrafine particles of core she.
将磁性Fe3O4 纳米材料和SO2 -4 ZrO2 固体酸进行组装 ,制得一系列具有磁性和超细粒子结构的固体酸催化剂SO2 -4 ZrO2 /Fe3O4 。
6)  ultrafine particles
超细粒子
1.
Preparation of α-Al_2O_3 ultrafine particles by microemulsion reaction and their characterizations;
微乳法制备α-氧化铝超细粒子及结构表征
2.
Properties of TiO_2 ultrafine particles were charactered by DSC,FTIR,XRD,BET and TEM.
采用表面活性剂OP-7、正庚烷、水和异戊醇形成的微乳体系制备TiO2超细粒子,并考察水和异戊醇含量对TiO2超细粒子平均粒径的影响。
3.
The droplets were hydrolysed with vater vapor at lower temperature to synthesize TiO2 ultrafine particles of high purity andnarrow size distribution.
氧化钛超细粒子具有很高的化学活性、良好的耐侯性和耐化学腐蚀性等,可。
补充资料:初级粒子和原级粒子
分子式:
CAS号:

性质:又称初级粒子和原级粒子。利用各种化学反应方法得到的最初粒子(晶粒)。一次粒子的大小约为0.005~1μm,比筛分的极限小得多,在介质中有相当高的稳定性。

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