Examples of pumping come the action that resolutions around amplification of a signal by a parametric amplifier, and the action that will bring a laser or maser with an input signal at the appropriate frequency to sustain stimulated emission.

Within lactation, pumping is the action of extracting milk from the mammalian mammary glands by mechanical means. The milking machine provides this function at commercial dairies, while the breast pump does the equivalent for human being.

Within the broader feel, pumping is also the run of moving a liquid from either 1 location to an additional, unremarkably by mechanical means, although there are electrical methods as well, eg.