| 摘要 |
<p>A stirrer for stirring liquid in a flask comprises a magnetically attractable member formed by or supported by a buoyancy chamber, the stirrer having less density than the liquid to be stirred; the stirrer may include an impeller. A method of stirring a liquid comprising introducing liquid and a buoyant, magnetically attractable stirrer into a vessel, and causing a rotating magnetic field to rotate the stirrer.</p> |
