Once this number is reached, if additional log space is needed, an error is issued indicating no more log files are available and all database activity is stopped.
一旦达到了这个数量，如果需要附加的日志空间，就会发出一个错误，指出没有更多的可用日志文件，所有数据库活动停止。
When this command is issued, all data files that are in the online backup mode will be issued checkpoint SCN.
当发出这个命令时，处于联机备份模式的所有数据文件都将被发放检查点 SCN。
The development system provides users with a visual operating interface to organize the project pictures which are issued as HTML files.
开发系统提供给用户一个可视化的操作界面，用来组织工程画面并以HTML文件形式发布；
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