“Ivan Asen Ⅱ”的概念、定义、翻译、参考文献-科学参考

单词	Ivan Asen Ⅱ
释义	Ivan Asen Ⅱ Encyclopedia 历史学保加利亚历史释 Ivan Asen Ⅱ伊凡·亚森二世（？～1241）保加利亚第二王国国王（1218～1241）。
随便看	respiratory electron-transport chain respiratory failure respiratory fuction & air analyzer devices respiratory function exercise respiratory genetic disorders respiratory health effects of atmospheric pollution respiratory insufficiency respiratory monitoring respiratory movement respiratory muscle respiratory nematodosis of ovine and cattle respiratory nematodosis of pig respiratory organs protection aid respiratory peak respiratory protector respiratory quotient respiratory rate respiratory rhythm respiratory root respiratory supplementation and draining method respiratory syncytial virus respiratory syncytial virus (RSV) infection respiratory syncytial virus，RSV respiratory system respiratory system of domestic animals

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