| 1. | With hydrodynamic screws , even minimum hydrodynamic potentials at powers from 1 kw can be made use of economically . with hydrodynamic screws , fine screening installations for protecting against floating objects and fishes , needed for turbines , are not necessary
该技术可以用于取代小型需要经常修复的涡轮机，取代有缺陷的水轮机，用于污水处理厂的出水口，安装在已有的水渠堰坝上，或安装在灌溉渠中。 |
