To rouse to activity; stimulate; make active.

使活动；使刺激；使活泼。

To make ready for action.

准备(行动)。

To bring about radioactivity in.

【理】使具放射性。

To aerate (sewage) in order to speed up the action of microorganisms.

灌气(于水沟，使微生物加速分解污物)以使净化。