certificate for alteration of export permit

例句：

1. 1.The company needs to provide a certificate for the alteration of its export permit.
   该公司需要提供一份出口许可证变更证明。
2. 2.The government issued a certificate for the alteration of export permits during the pandemic.
   政府在疫情期间发布了一份出口许可证变更证明。
3. 3.The exporter needed to obtain a certificate for the alteration of its export permit before it could proceed with the shipment.
   出口商在发货前需要获得一份出口许可证变更证明。