It refers to the transactions in bank deposits or in exchanging currencies which period is less than one month.
指期限在一个月以内的银行存款或远期外汇交易。
All of them simultaneously engage in the activity of exchanging their currencies.
他们所有人同时从事交换他们的货币的活动。
The date of maturity of the contract, when the final settlement of transaction is made by exchanging the currencies.
合约的到期日，即通过交换货币最后清算交易的日期。
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