最终，缓存将会被最常用的数据重新填充。
Eventually, the cache will be repopulated with the most commonly used data.
当总线空闲下来时，它可以重新填充额外的缓冲区。
周期性影响包括补充库存：谷物库存随价格走高减少，需要重新填充。
Cyclical influences include re-stocking: cereal stocks were run down as prices spiked and need to be replenished.
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