The topology editor creates a matching bound virtual image unit (Figure 20) that contains disk definition units and network connection units, according to the data in the virtual image file.

拓扑编辑器创建了一个匹配的虚拟镜像单元(图20)，根据虚拟镜像的数据，它包含了硬盘定义单元以及网络连接单元。

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Add a virtual disk definition unit and a virtual Ethernet connection unit to the virtual image.

向虚拟化镜像添加一个虚拟的硬盘定义单元和一个虚拟的以太网连接单元。

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In a virtual storage system, a fixed-length block of contiguous virtual addresses copied as a unit from memory to disk and back during paging operations.

在虚拟存储系统中，一个固定长度的连续虚拟地址块，在分页操作过程中它作为一个单位在内存和磁盘之间来回复制。

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