求翻译：POST 票务软件系统为操作员提供取消纪念品销售界面操作，并通过与Central System之间的实时通讯完成取消纪念品销售服务的提供。操作员可以对在本班次本窗口销售出去的纪念品进行取消交易的操作。是什么意思？

post ticketing software system for the operator to cancel the souvenir sales interface operation, and by real-time communication between the central system to cancel the souvenir sales and service provider. The operator can cancel the trading operation out of the souvenir sales in the frequency wind

POST ticket software system available for the operator interface to souvenir sales, and Central System with real-time communications between cancel souvenir sales services. You can operator in this shift to the window of the souvenirs sold the operation to cancel the deal.

The POST ticket clerk software system provides for the operator cancels the souvenir sale contact surface operation, and through completes with the Central System between real-time communication cancels the souvenir sale service provision.The operator may to the souvenir which sells in this school g

POST ticketing software systems as the operator to cancel the souvenir sales interface operation, and through real time communication with the Central System of complete cancellation of souvenir sales and service provided. Operators can be carried out in the frequency window sold souvenirs trading a

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