normal power source 예문

예문

1. _A dedicated independent power supply to keep the cockpit recorders operating for 10 minutes whenever normal power sources are cut off.
2. At Portland, Maine, 11 November 1947 to 25 March 1948, " Maloy " provided electrical power for the city when, because of extreme drought conditions, local power companies could not draw on their normal power source, the lakes and rivers of the area.