1) the primary particle
一次粒子
2) primary particle size
一次粒径
1.
The influence of the preparing conditions on the primary particle size,aggregated particle size and aggregated degree of CeO_2 was studied.
用碳酸氢铵从硝酸铈溶液中沉淀制备了超细C eO2粉体,研究了沉淀工艺条件对制备C eO2的一次粒径、团聚粒径以及粉体团聚性的影响。
3) secondary particle
二次粒子
1.
Measurement of size and distribution of secondary particle piled pore of α-Al_2O_3 carrier by TEM;
TEM测定α-Al_2O_3载体的二次粒子堆积孔大小及分布
2.
Xonotlite secondary particles were synthesized from industrial lime made in jingxing, Hebei province,powder quartz asraw materials and small amount of zirconium oxychloride as a mineralizer by means of hydrothermal synthesis.
在动态水热合成条件下,以河北井阱石灰为钙质原料,粉石英为硅质原料,加入少量的氧氯化锆为矿化剂合成硬硅钙石二次粒子。
3.
The water soluble ions and metal elements are the key compositions of the aerosol, whose distribution characteristics of mass concentrations in different sizes indicate the sources and the formation of secondary particles, and are used to study the concentrations of primary particles and their chemical characteristics.
水溶性离子和金属元素是气溶胶的重要组分成分,它们在不同粒径范围内的质量浓度及分布规律可表明二次粒子的来源及形成规律,可以用于分析研究原生粒子的不同排放源及其化学成分组成特征,研究结果不仅可用于气溶胶粒子对气候和环境变化影响的进一步研究,而且可以用于细粒子对人体健康危害研究的初始科学依据。
4) secondary particles
次级粒子
1.
The influence of the properties of two hump distribution primary particles and secondary particles of paste PVC resin on the paste viscosity has been analyzed by using scanning electronic microscope.
利用扫描电镜,分析双峰分布的聚氯乙烯糊树脂初级粒子和次级粒子颗粒形态对糊粘度的影响。
2.
Particles impinging on the surface of the space vehicle or shielding materials produce secondary particles, which, together with the primary radiation contribute significantly to the space vehicle’s inner radiation environment which astronauts would be exposed.
深空条件下的高能粒子会穿透航天器舱壁材料,通过射线与物质材料的相互作用,在航天器内产生二次粒子,形成由初级粒子、次级粒子叠加的混合辐射场的辐射环境。
5) primary particulate matter
一次颗粒物
1.
A sampling probe,together with an 8-stage Andersen particle impactor,was employed to sample the primary particulate matter(PM) at different places in a laboratory-scale drop tube furnace during pulverized coal combustion,in order to study the primary PM features.
实验室条件下,将取样枪与8级Andersen粒子撞击器联用,分别在沉降炉内炉管的100 cm、60 cm和45 cm处(代表不同的燃烧时间)采集煤粉燃烧后的一次颗粒物并做分析,研究燃烧时间对煤粉生成的一次颗粒物特性的影响。
2.
A cascade experimental system of laboratory- scale drop tube furnace and an 8-stage Andersen particle impactor were employed for studying the primary particulate matter(PM)features influenced by pulverized coal combustion at different burning temperature.
实验室条件下,以沉降炉与8级Andersen粒子撞击器级联使用,研究燃烧温度对煤粉燃烧生成的一次颗粒物特性的影响。
补充资料：一次粒子
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。
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。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条