这些文件是在第一次连接数据库时预先分配好的。

These files are pre-allocated during the first connection to the database.

youdao

其工作原理如下：用户第一次访问某个站点时，就会安装一个追踪文件，该文件给计算机分配一个唯一性的ID号。

They work like this: The first time a site is visited, it installs a tracking file, which assigns the computer a unique ID number.

youdao

当主日志文件用完时，次日志文件会一次按需分配完毕的，最大可分配数据库配置参数LOGSECOND 所指定的值。

Secondary log files are allocated one at a time as needed, up to the value of the database configuration parameter LOGSECOND, when the primary log files become full.

youdao

这个文件既不是分配给一个高级帐户，或收藏家的帐户，因此只能被下载10次。

This file is neither allocated to a Premium Account, or a Collector's Account, and can therefore only be downloaded 10 times.

youdao

这个文件既不是分配给一个高级帐户，或收藏家的帐户，因此只能被下载10次。

This file is neither allocated to a Premium Account, or a Collector's Account, and can therefore only be downloaded 10 times.

youdao