核销单的英文翻译

　　1. Certificate for cancellation of foreign exchange after erifcation (表达比较完整)

　　2. Cerification sheet/certification (字面意思,如果不了解核销程序的客户会看不懂)

　　3. Tax refund document/certificate (对出口人来说意思更准确,但有时不想让外商知道出口方能够退税)

　　4. (Foreign) exchang control declaration (从外汇管制角度说比较准确)