functor双: two; twin; both; dual函子: functor函子: functor◇函子范畴 category of functors双函数: digamma function; dual-function; psi functionext函子: ext functor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:双函子，即可在微信中查询翻译
