外汇兑换券 meaning in Chinese

fec foreign exchange certificate
foreign exchange certificate

Mr . li : thank you . what exactly should i do with the foreign exchange certificates left with me
李先生：谢谢。如果外汇兑换券用不完该怎么办？
Where the accounting books are maintained in multi - currencies ( including foreign exchange certificates ) , different journals shall be kept for each currency
当（企业）帐薄含有多个货币时（包括外汇兑换券），企业应按不同的货币分别设帐登记。