求翻译：1) 操作员输入旅客提供的查询交易凭证，通过POST 票务软件系统向Central System 发送在线交易查询命令，获取旅客在线交易信息，旅客提供的查询交易凭证有以下三种：是什么意思？

1) an operator input travelers query transaction certificate query command sent to the central system through the post ticketing software system online trading, access to visitors online transaction information, visitors and query transaction certificates of the following three:

1) * operator to enter the query transactions provide guests with vouchers POST ticket software system to send Central System query command in online trading, online trading for travelers, visitors information inquiry transaction voucher has the following 3 ways:

1) The operator inputs the inquiry transaction certificate which the passenger provides, transmits the online transaction inquiry order through the POST ticket clerk software system to Central System, gains the passenger online transaction information, the inquiry transaction certificate which the p

1) provided by the operator to enter the query transaction vouchers, sent through POST ticketing software systems to the Central System online transaction query command, gets visitors online transaction information, query transaction vouchers provided by the passenger has the following three types:

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