整体最优为北京DHL快递管理的目的。

Overall optimal for Beijing DHL management purpose.

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发送和接收信件，并记录。负责快递管理和确保货物能及时安全送达。

Send and receive mails, keep all the bills and record mailing list. Be responsible for Courier management and ensure the shipment could be arranged safely and timely.

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员工权限分配灵活严谨，可以设置操作人员不同级别的操作权限，信丰快递管理系统避免越权操作，数据相互保密。

Precise and flexible allocation of staff privileges, the operator can set different levels of operating authority, to prevent unauthorized operation, data confidentiality with each other.

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