这种环境的花销包括购买和维护操作系统的费用、购买和升级硬件的花费以及管理支出。
Costs for such environments include the purchase price and maintenance for the operating system, initial outlays and upgrades for hardware, and other administration expenditures.
具体方法是允许您通过在TL的整个生命周期期间安装服务包和PTF来维护操作系统。
This is done by allowing you to maintain your operating system by installing service packs and PTFs throughout the entire lifecycle of the TL.
这些虚拟地址映射到物理内存页表，这是维护操作系统的内核和处理器咨询。
These virtual addresses are mapped to physical memory by page tables, which are maintained by the operating system kernel and consulted by the processor.
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