1)  dual-media filter
双层滤料滤池
2)  double-layer filter
双层滤料滤池
3)  coal-sand dual media filter
煤砂双层滤料滤池
4)  bilayer
双层
1.
This paper studied the procyanidins double-coated microencapsulating technology by double emulsion-spray drying, using soybean protein isolated, malt dextrin, sunflower seed oil, emulsifier et al.
本文研究以大豆分离蛋白、麦芽糊精与葵花籽油、乳化剂等作为双层壁材,采用双乳化-喷雾干燥法制备双层原花青素微胶囊。
2.
White light-emitting diode was obtained based on polymer bilayer structure of poly(N-vinlycarbazole)(PVK) and green light-emitting copolymer(PFSeH) of 9 9-dioctylfluorene(DOF) and selenophene(SeH).
通过聚乙烯咔唑(PVK)和发绿光的9’9-二辛基芴(DOF)与硒芬(SeH)的共聚物(PFSeH)形成聚合物双层器件结构(ITO/PEDOT/PVK/PFSeH/Ba/A l)实现白光发射。
3.
A numerical model for bilayer organic light-emitting diodes (OLEDs) is developed under the basis of trapped charge limited conduction.
在陷阱电荷限制电流传导理论的基础上 ,提出了双层有机电致发光器件的数值模型 ,研究了结构为“阳极 /空穴输运层 ( HTL) /发光层 ( EML) /阴极”的器件中电流密度和量子效率随有机层的特征陷阱能量、陷阱密度和载流子迁移率的依赖关系 。
5)  double layer
双层
1.
Study of Double layer Inclinde-Tubes in a Settling Pond;
关于双层斜管沉淀池的探讨
2.
A type of double layer suspended spiral inductor was fabricated by the MEMS technology,and the performances of the inductor were measured at 0 05~10 GHz,and the effects of micro line width to Q-factor and the inductance were also studied.
利用MEMS工艺制作了一种双层悬空结构的圆形射频微电感,研究了双层结构微电感中微带线宽度对其性能的影响。
6)  double-layer
双层
1.
Based on the structural features of a DV tape package and the characteristics of raw material,a set of hot-runner injection mould with double-layer and four-cavity in a layer was designed for forming the package.
基于塑件结构特点和原料特性,设计了生产DV带包装盒的1模8腔热流道双层注射模,为此类浅壳状塑件的生产提供了一种经济、高效的解决方案。
参考词条
补充资料:双层滤料滤池
分子式:
CAS号:

性质:一种下流式重力深床滤池。其构造与操作与快速滤池相同。这种滤池上层滤料密度较轻(无烟煤、陶粒或塑料等),下层滤料为砂。过滤速度为10m/h,反冲强度为48~72m/h。其截污能力比一般快速滤池可提高2~2.5倍。在对生物处理后的出水进行过滤时,需采取某种形式的辅助冲洗措施。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。