noun
floating nuclear power station
Technical term for a nuclear power plant built on a floating platform, typically at sea.
ロシアは世界初の水上原子力発電所を建設した。
Russia built the world's first floating nuclear power station.
A general nuclear power plant; 水上原子力発電所 specifies a floating one.
Compound of 水上 (on water) + 原子力 (nuclear power) + 発電所 (power station).