first triad

英 美
  • [化] 铁三素组(指铁钴镍); 铁类金属; 铁基金属; 黑色金属

first triad的相关资料：

临近单词

First Day first First-level hospital First Target Detection first Lagrangian point first generation money first stage ionization First grade evaluation First Class in College first order stationary first hand information first generation image
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