这些错误可以由程序员修复，也可以重新发送给穿孔机操作员，直到编译清单被清除为止。

The errors were either fixed by the programmer or sent again to the key puncher until the compile listing was clean.

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第49到52行定义“添加”、“查找”和“清除”操作的Menu和MenuItem，当部署和运行应用程序时可以从下拉菜单使用它们。

Lines 49 to 52 define the menu and MenuItem for the add, find, and clear actions, which can be accessed from drop-down menus when the application is deployed and run.

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应用程序可用其执行日志传送配置中的备份、复制和还原操作以及相关的清除任务，而无需运行备份、复制和还原作业。

Used by applications to perform backup, copy, and restore operations and associated clean-up tasks for a log shipping configuration without running the backup, copy, and restore jobs.

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