（an amount ） additional to what is needed or use， as of money 余额 float bands 发行债券 parity n. 平价（指官定货币汇兑比值） .
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float bands
浮动乐队
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The float can be achieved by widening the bands or moving to an unspecified currency basket.
可以通过扩大浮动区间或过渡到盯住不规定币种的一揽子货币来实现浮动。
youdao
Either countries should float their currencies (or adopt much wider bands) or they should adopt the rigid fixity of a currency board or even currency union.
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