functional currency

也是用银为主。虽然清代将银作为合法货币，但各地的银锭实际上并不存在统一的标准，还需要相互兑换才能使用。学术界对银两本位货币（英语：functional currency）地位存在争议。如果按照西方统一铸造、平色划一的货币标准判定，银两显然不属于本位货币；但如果按照唯一具有价值尺度货币的标准衡量，银两毫无疑问称得上本位。

Subjects. IMF. [2021-07-01]. （原始内容存档于2020-11-22）.  ISO Currency – ISO 4217 Amendment Number 159. Currency Code Services – ISO 4217 Maintenance Agency. SIX Interbank

signals because Elm has been moving towards an explicit emphasis on concurrency for quite some time now. ……Just like with my thesis, Concurrent FRP, the

[2020-06-28]. （原始内容存档 (PDF)于2016-06-03）.  Warren Mosler, ME/MMT: The Currency as a Public Monopoly （页面存档备份，存于互联网档案馆） Modern Modern Monetary Theory (MMT):