A memory multiplexing design in which segments are kept on a backing storage and only placed in an internal storage when computations refer to them 一种存储器多路转换设计法，其中存储段保存在后备存储器中，只有当计算用到它们时才将其取到内存储器中。
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A process of dynamic relocation in which contiguous segments are moved to one end of the memory to combine all unused storage at the other end 一种能动态重新安排存储器的处理技术，即把各连续已用的存储段移到存储器的一端，把未使用的存储空间集中到存储器的另一端。
