E-ticketitinerary是什么意思？

E-ticket itinerary电子客票行程单双语对照例句:1.E-ticket itineraryis produced by the state administration oftaxation, not only can be used as reimbursement vouchers,travelers can also save information relatedto purchase and, ifnecessary, through a single e-ticket itinerary information to theairline or airport-related sectors verification. 电子机票行程单是由国家税务总局监制，不仅可作为报销凭证，还可以为旅客保存相关购票信息，必要时可通过电子机票行程单上的信息，向航空公司或机场相关部门进行核实