non-proliferation

劍橋詞典

the controlling of the spread and/or amount of something, especially nuclear or chemical weapons
（尤指對(duì)核武器或化學(xué)武器的）不擴(kuò)散，防止擴(kuò)散
a non-proliferation treaty 防止核擴(kuò)散條約 返回 non-proliferation