1) Interference settling
干涉沉降
2) intervenient settling correction
干涉沉降修正
3) hindered settling
干扰沉降
1.
Based on the hindered settling phenomena of the Yellow River high-turbidity water with polymer flocculant, this article discusses the interaction between silt particles from the Yellow River and molecule chain of the polymer, and the model of specific surface area in the flocculating process of the Yellow River silt particles.
从黄河高浊度水在高分子絮凝剂作用下的干扰沉降现象出发,叙述了黄河泥沙颗粒与高分子聚合物链状分子间的吸附作用、黄河泥沙絮凝过程的比表面积模型。
4) dry deposition
干沉降
1.
The dry deposition velocities of SO_(2)and SO_4~(2-) in the coastal area of Qingdao in 2003 were calculated using models appropriate to each species of the contaminants,and the contributions of the transfer resistances to the dry deposition were also evaluated.
用小麦岛和团岛观测站提供的青岛近海气象和水温资料,以适于SO2气体和硫酸盐(SO42-)气溶胶的干沉降模型研究了模型中的输送阻尼对两种污染物质干沉降速率的贡献,并计算了2003年青岛近海地区两种污染物质干沉降速率的季节变化。
2.
Dry deposition of SO2 is 70%~90% of the total dry deposition and wet deposition of SO42- is 1~9 times higher than wet deposition of SO2.
大多数地区,干沉降是硫沉降的主要形式,在降水区,湿沉降可占总沉降的20%~95%。
3.
The seasonal variation of total suspended particles (TSP), size distribution and dry deposition in Qingdao are also studied.
根据青岛沙尘天气历史资料和近年来的青岛地面气溶胶观测资料 ,分析了青岛沙尘日数的长期变化趋势、季节变化特征以及气溶胶质量浓度、谱分布和干沉降的季节变化。
5) dry and wet deposition
干湿沉降
1.
Seasonal variation and spatial distribution of the dry and wet deposition fluxes of the airborne particulate PAHs in Pearl River Delta (PRD) region were reported.
为研究大气有机污染物的沉降作用对周边环境的影响,以大气中多环芳烃的沉降为例,使用被动采样器,于珠江三角洲代表性地段(包括香港)系统布设了13个大气干湿沉降采样点,分季节进行了为期1年的连续观测研究(200104-200204)。
2.
This review describes fluxes of mercury exchange at the soil-air interface during the past twenty years,including existing forms of mercury in air and soil,the dry and wet deposition of atmospheric mercury,the emission of mercury from soil,and the (influence) factors of mercury fluxes.
本文综述了20多年来汞在土壤-大气界面间交换的研究现状,包括汞在大气和土壤中的存在形态、大气汞的干湿沉降、土壤汞释放及影响因素的研究,分析其存在的问题,并提出了未来的研究重点。
6) Dry depositions
干性沉降
补充资料:干涉沉降
干涉沉降
turbulence settling
ganshe ehenjiang干涉沉降(turbulenee settling)固体颗粒在流体中除受自身重力和流体浮力作用外,还受周围其他颗粒或器壁等附加作用力干扰作用的沉降过程。附加作用力基本上有两种情况:其一是颗粒向下沉降时,局部流体沿颗粒间或颗粒与器壁间的空隙向上涌起,形成上升股流,从而增加了流体的阻力(见图);其二是固体颗粒群与流体构成悬浮体,增大了流体的密度,从而增加了对颗粒的浮力。此外,在沉降过程中有些颗粒之间还产生碰撞、摩擦,使其运动途径及速度发生变化。颗粒的干涉沉降速度小于自由沉降速度。 l协拿勺加 干涉沉降中颗粒所受的附加作用力示意图 “一颗粒与器壁间;b一颗粒之间 (陈炳辰)
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