出典:Wiktionary
radioactive + -ity
radioactivity (usually uncountable, 複数形 radioactivities)
出典:Wikipedia
出典:『Wikipedia』 (2011/06/20 05:29 UTC 版)
Radio-Activity (German Language Edition: Radio-Aktivität) is the fifth studio album by German electronic band Kraftwerk, released in October 1975. Unlike Kraftwerk's later albums, which featured language-specific lyrics, only the titles differ between the English and German editions. A concept album, Radio-Activity is bilingual, featuring lyrics in both languages.