three-membered ring的意思|示意

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三元环

三元环 ... threatened species受威胁物种 three-membered ring三元环；三原子环 three-way catalytic converter三元催化排气净化器 ...

三原子环 ... threatened species受威胁物种 three-membered ring三元环；三原子环 three-way catalytic converter三元催化排气净化器 ...

三节环 three-membered ring 三节环; 三元环；三原子环..

详细翻译详细翻译>> three-membered ring 三节环; 三元环；三原子环..