- program request key (prk)英语什么意思：A set of keys on a terminal keyboard or keypad that the user can define in a request to allow the terminal operator to communicate with the application program at run time.; 终端键盘或小键盘上的一组键,用户在需要时能定义它们,以允许终端操作员 在运行时与应用程序通信。
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