“二氧化钍”的概念、定义、翻译、参考文献-科学参考

单词	二氧化钍
释义	二氧化钍 Encyclopedia 理学放射性元素释 thorium dioxide二氧化钍钍的唯一稳定的氧化物，化学式ThO2，通常又称氧化钍。 Chemistry ＞环境化学＞其他相关概念＞释义 thorium dioxide; thoria二氧化钍
随便看	Second Temple Period second term second theorem of Pappus second trace second-trace echo second transit second-type outer boundary condition second type surface Second United Nations Conference on Human Settlements (HABITAT II) second university reform movement in Germany second variation second variation formula second variation formula of arc length Second Vatican Council second virial coefficient second wave of Chinese newspaper publication second window secrecy secrecy capacity secrecy system Secret Agreementon Question of Constantinopleand Straits Secretariat-Chancellery secretariat style secretary-general of the United Nations secretary in a bureau

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