任何存储器空间开始处的绝对地址，当使用间接寻址方法定位存储器区域中某些单元时，以此绝对地址作为参考地址。
The absolute address at the beginning of any area of storage to which reference is made when indirect addressing methods are used to locate items in the storage area.
任何存储器空间开始处的绝对地址，当使用间接寻址方法定位存储器区域中某些单元时，以此绝对地址作为参考地址。
The absolute address at the beginning of any area of storage to which reference is made when indirect addressing methods are used to locate items in the storage area.
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