The main problem of the intervention to foreign exchange market is whether charge against intervention and non-charge against intervention can affect exchange rate.

外汇市场干预的中心问题，就是冲销干预和非冲销干预是否影响汇率以及如何影响汇率的问题。

youdao

Categories of target zone system of exchange rate depend on different intervention of the central bank.

中央银行外汇市场干预的不同决定了汇率目标区制中类型的不同。

youdao

China is no different from most emerging market economies in adopting policies of foreign exchange market intervention, capital controls and interest rate regulation.

中国干预外汇市场，实行资本控制和利率管制，这些政策其实与绝大多数新兴市场经济体没有什么不同。

youdao

"We would not expect, given the strength of the flows, that intervention would materially change the level of the exchange rate, but we could take potentially the tops off rallies, " said Graeme Wheeler, governor of The Reserve Bank of New Zealand.

WSJ: Asian Governments Take Measures to Battle Strong Currencies

Floating the yuan would also relieve the monetary authorities of self-defeating exchange rate intervention.

FORBES: China Recalculates: Slow Down And Be Happy

Even America, with least to worry about in this respect (because of the size of its economy), has a policy of sorts on the dollar's value including attempting to push the rate around by means of foreign-exchange intervention.

ECONOMIST: Off target