该层将一段源id映射到物理数据库，对于同一个物理地址的表，通过建立树来处理。
A forwarding layer maps ranges of source IDs to physical databases, and replication is handled by building a tree of such tables under the same forwarding address.
操作系统通过一个内部表将处理器地址空间中的内存段映射到内存页，该表定义哪些内存段由哪些处理器所拥有，等等。
Operating systems map memory segments in a processes' address space to memory pages through an internal table which defines what memory segments are owned by what processes, and so on.
由于每个页都要由每个进程映射，必须创建页表条目来将虚拟地址映射到物理地址。
For every page mapped by each process, page-table entries must also be created to map the virtual address to the physical address.
对于每个正在运行的进程，虚拟地址与物理地址之间的映射是在一个称作页表的数据结构中维护的。
For each running process, the mapping between virtual and physical address is maintained in a data structure called the page table.
现在，地址转换表就拥有了这台计算的不可路由IP地址到一个唯一 IP地址的匹配映射。
The translation table now has a mapping of the computer's non-routable IP address matched with one of the unique IP addresses.
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.
唯一节点标识符到层次化地址的映射用一个平衡层次化网络结构的分布式哈希表来实现的。
The mapping of unique node identifiers to hierarchical addresses is done using a distributed hash table that leverage the hierarchical network structure.
唯一节点标识符到层次化地址的映射用一个平衡层次化网络结构的分布式哈希表来实现的。
The mapping of unique node identifiers to hierarchical addresses is done using a distributed hash table that leverage the hierarchical network structure.
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