但是仅仅依靠分数判断的电脑操作并不会考虑这么多细节。
But a computer program that depends just on score won't consider those details.
只有部分数据副本参与更新操作，且/或作为读操作的一部分与其它副本进行联系时，就会出现弱/最终一致性。
Weak/eventual consistency happens when not all data replicas participate in the update operation and/or contacted as part of read operation.
它可以压缩大部分数据，可以快速查找，而且支持快速的boolean操作。
They are compact for most data, have fast lookup, and allow fast Boolean operations.
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