| 摘要 |
The invention features a mixing device comprising a rotatable impeller having a multiplicity of blades. Each blade of the impeller has an optimal angle of attack with respect to the fluid being mixed. An elliptical, fluid flow-through aperture in each blade provides for an improved flow stream about the impeller blades. The impeller is mountable upon a rotatable shaft which can be rotatively driven by a household drill.
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