eight ringeight-membered ring八: eight元: first; primary环: ring; hoop十八元环: eighteen ring; eighteen-membered ring八元数: biquaternino; biquaternion; octonion下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:八元环,即可在微信中查询翻译