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International Years of the Quiet Sun
life.sc.
Años internacionales de actividad solar mínima
;
Años Internacionales del Sol Quieto
English thesaurus
International Years of the Quiet Sun
ecol., abbr.
IQSY
International Year of the Quiet Sun
abbr., astronaut.
IQSY
ecol., abbr.
IOSY
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