出典:Wikipedia
出典:『Wikipedia』 (2009/10/07 01:29 UTC 版)
An Orbital Replaceable Unit is a box considered a subsystem of the entire Electric Power System (EPS) of the International Space Station that can be replaced upon failure by a robot or by an Extra-Vehicular Activity (EVA). There will be several of these ORUs that work as components together to provide power generation, power distribution and energy storage for the ISS.