The railway ticket printer is one of the important parts in the Ticketing System for railways. It is the insurance of the Ticketing System that ticket printer has a good working state.
铁路客票制票机是铁路客票系统重要的组成部分，保证制票机有良好的工作状态是铁路客票系统持续有效运行的保障。
The bulky printer has been replaced by one of those tiny gadgets used in portable ticket machines.
用于便携式票务器的一个小零件代替了传统庞大的打印机。
Instructions for checking that a print ticket is valid and that it does not request anything that is not supported by the printer.
有关检查打印票证是否有效，并且确保它不会发出任何打印机所不支持的操作请求的说明。
Instructions for checking that a print ticket is valid and that it does not request anything that is not supported by the printer.
有关检查打印票证是否有效，并且确保它不会发出任何打印机所不支持的操作请求的说明。
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