Through this, UPS could get its packages cleared by the customs authorities even before their arrival into the airport, thereby saving a lot of time required for the customs clearance process.

通过这一系统，联合包裹甚至可以在包裹到达机场之前就向海关办理完通关手续，从而节约了大量用来办理海关通关手续的时间。

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Normally the declared price is approved as the base of the customs duty-paying value of the goods through clearance.

一般情况下海关在通关环节以其申报价格为基础确定完税价格。

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Tracking and coordinating customers' orders from time of order placement to time of clearance through US customs;

追踪并配合客户的订单从一下订单开始到美国海关清关完毕的整个过程；

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These allow trusted travelers to enter the United States and Canada with expedited clearance through immigration, security, and customs.

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