SSRabbr.
中文abbr. 苏维埃社会主义共和国(Soviet Socialist Republic);二次监视雷达(Secondary Surveillance Radar);小型潜艇反应堆(Small Submarine Reactor)
词根词源
SSR1926, from Russian, initialism (acronym) for Sovetskaya Sotsialisticheskaya Respublika "Soviet Socialist Republic."
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