虚拟内存段还包含字典缓存器，存储过程缓存器，以及在向磁盘一次性写入大块页面时使用到的较大的缓冲池。
Virtual segment also contains dictionary cache, stored procedures cache, and big buffer pools used for writing large block of pages to disk at once.
如果希望写入大量来自Portlet的数据，通常最好采用对已缓存的数据进行部分刷新的方式，而不采用对全部数据一次性刷新的方式。
If you want to write large amounts of data from a portlet, it is usually a good approach to flush the buffered data partly rather than flushing them completely in a single blow.
单片机的掩模 ROM集成到单片机中，并在生产单片机时一次性编程写入。
The mask-programmed read only memory of the microcontroller is integrated into the microcontroller and programmed once and for all during manufacture of the microcontroller.
单片机的掩模 ROM集成到单片机中，并在生产单片机时一次性编程写入。
The mask-programmed read only memory of the microcontroller is integrated into the microcontroller and programmed once and for all during manufacture of the microcontroller.
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