Warning: file_put_contents(/www/wwwroot/zidian/oumou.cn/cache/38f1a70ddd831cd4f9eb7faad7e11d10.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/oumou.cn/index.php on line 58
crown-ether英英字典_crown-ether剑桥英语解释_crown-ether柯林斯英文解释_歐米惠必应词典
歐米惠必应词典

crown-ether

C 开头单词

柯林斯词典

    crown ether

  • 1. N a type of cyclic ether consisting of a ring of carbon and oxygen atoms, with two or more carbon atoms between each oxygen atom 冠醚[chem]

    • 返回 crown-ether