For example, an "undefined record" is a record of unspecified or unknown length.
例如，某条“未定义记录”就是一种未确定或不知道长度的记录。
Not specified or not known to an operating system. for example, an "undefined record" is a record of unspecified or unknown length.
指对某一操作系统而言是未确定的或不知道的。例如，某条“未定义记录”就是一种未确定或不知道长度的记录。
If neither the filter nor the comparator are specified, the enumeration will traverse all records in the record store in an undefined order.
如果既没有指定过滤器又没有指定比较器，枚举将以未定义的顺序遍历记录存储中的所有记录。
The state of a record updated by two users at the same time is undefined unless the system can guarantee that two users cannot update a record simultaneously.
由两个用户同时更新的记录的状态是未定义的，除非系统可以保证两个用户无法同时更新记录。
The state of a record updated by two users at the same time is undefined unless the system can guarantee that two users cannot update a record simultaneously.
由两个用户同时更新的记录的状态是未定义的，除非系统可以保证两个用户无法同时更新记录。
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