lupane羽扇: feather fan多: many; much; more环烷: cycloalkanes; cycloparaffin; ...多环烷: polynaphthene多环环烷: polycyclic naphthene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:羽扇多环烷，即可在微信中查询翻译
