水循 meaning in Chinese
hydrologic cycle
water cycle
Examples
- Up - flow filtration with coarse sand media , the water intaking from the bottom layer where the particle diameters of coarse media were the widest and outputting from the surface layer where the particle diameters of coarse media were the thinnest in the single media , was studied theoretically and experimentally in this research . it solved the difficult technical problem of reverse grain filtration
本文对粗石英砂滤料上向流过滤技术进行了理论和实验研究，在单一的滤层中待滤水循粒径最粗的底层进，从粒径最细的表层出，攻克了“反粒度过滤”的关键技术。