Jisho

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補助動力装置
Wikipedia definition
1. Auxiliary power unitAPU may refer to AMD_Fusion or the Accelerated Processing Unit Auxiliary Power Unit 300px The APU exhaust at the tail end of an Airbus A380 An auxiliary power unit (APU) is a device on a vehicle that provides energy for functions other than propulsion. They are commonly found on large aircraft, as well as some large land vehicles. Aircraft APU generally produce 115V at 400 Hz (rather than 50/60 Hz in mains supply), to run the electrical systems of the aircraft; others can produce 28V DC.
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