| 摘要 |
<p>A lake water mixing device wherein an elongated, generally cylindrical, open ended housing is submerged at a lake's deepest point with it's longitudinal axis in a generally vertical attitude. It is supported by legs resting on the bed or by floatation and anchor devices. A powered propeller inside the housing is arranged so that it's rotation causes a rising current through the housing. This rising current brings bottom waters to the lake's surface.</p> |
