| 摘要 |
Lid for a well plate having wells therein having pin-like members which project downwardly into the wells of said well plate. The invention has means and pins associated with each means for causing the pins to change temperature or vibrate ultrasonically or control the polarity and magnitude of an electrical charge placed on the pins. The means can, respectively, alter the temperature of a fluid contained in the wells or sever material contained in the liquid or attract or repel particles suspended in the liquid.
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