As it stands, Chinese exchange rates are allowed to fluctuate by a maximum of 2% on either side of the central parity, which the PBOC fixes daily. When the moving market rate reaches the edges of the fluctuation band, the PBOC can intervene in the market by buying or selling its foreign-exchange reserves.
目前，中国的汇率可以在由人民银行每日公布的汇率中间价上下2%之内波动。当市场汇率达到波动区间的边界时，人民银行将通过买入或出售其外汇储备干预市场。