在这种技术中，一个主存储控制器为相同或不同厂商提供的其他存储控制器提供虚拟化服务。

In this technique, a primary storage controller provides the virtualization services for other storage controllers of same or different vendors.

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SPE不能直接读取主存，相反地必须通过对内存流控制器(或mfc)的单元使用dma命令来在本地存储和主存之间导入和导出数据。

The SPE cannot read main memory directly, but instead must import and export data between the local store and main memory using DMA commands to a unit called the memory flow controller, or MFC.

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执行过程中的一个阶段所需的时间，在此期间，计算机从主存储器中取出指令或操作数，并将其存入控制器或运算器的寄存器中。

The part of execution in which an operand or instruction is read from main storage and written into a control unit or arithmetic unit register.

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