| gramme machine | <physics> A kind of dynamo-electric machine; so named from its French inventor, M. Gramme. Source: Websters Dictionary (01 Mar 1998) |
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| heart-lung machine | A combination blood pump and blood oxygenator used for temporary periods of time in cardiopulmonary bypass for cardiac surgery. (12 Dec 1998) |
| productive machine hours | That portion of scheduled operating hours during which a machine performs its designated functions, excluding time to transport the machine and operational or mechanical delays. (05 Dec 1998) |
| q-machine | <radiobiology> Plasma device studied in the 1960s, noted for its natural quiescence, which made it attractive for plasma wave phyics experimentation. (09 Oct 1997) |