“precious metal”的概念、定义、翻译、参考文献-科学参考

单词	precious metal
释义	precious metal Chemistry ＞无机化学＞无机化学基本概念与无机化合物＞释义 noble metal; precious metal贵金属
随便看	rotor spinning yarn rotor stability analysis rotor static balancing rotor-stator reactor rotor structure of aero-engine rotor support structures rotor system fatigue test rotor system rotating dynamic test rotor thermal bending rotor-type electrometer Rotorua Rotorua-Taupo Thermal rotor unbalance rototrol rot proof finishing rotproofness Rotten Egg Nebula rottenness rotter Rotterdam Rotterdam Rules rotting edges syndrome of Apostichopus japonicus larvae rotund rotunda rotundity

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