Memoizing a function adds a transparent caching wrapper to the function, so that function values that have already been obtained are returned from a cache rather than being rebuilt each time.

记忆一个功能将为功能添加一个透明的缓存封装，因此已经得到的值将从缓存中返回而不是每次都重建。

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As the needs of updating the industry, restructuring enterprise, enhancing the brand and other reasons, its function should be redefined and the existing buildings will be rebuilt.

由于行业更新、企业改制和提升品牌等原因，需对现有用地重新进行功能定位、业态置换和建筑改造。

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As the outlet pipe of well F1 is exposed, it has completed rotten, and lost the drainage function, so we have to rebuilt the downstream offtake.

由于人井f1的出水管暴露在人井外，且已锈蚀腐烂，完全失去了排水作用。故f 1下游排水渠需从新铺设。

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