Also notice the CACHE_FEED_TIME expiration value being used to expire data from the cache.
另请注意，使用了CACHE_FEED _ TIME到期值使缓存中的数据过期。
Unlike the data associated with an LSID, metadata can expire.
和与LSID关联的数据不同，元数据会到期。
The bus can automatically expire the data when it is no longer valid.
总线可以在数据不再有效时自动地对其进行过期处理。
Dholakia's study found that 22% of respondents allowed their Groupon coupons to expire without being used, though he warns that vendors' data was somewhat spotty on that metric.
Dholakia的研究发现，有22%的被调查对象并没有使用Groupon优惠券，而是让它们过期作废，然而他提醒人们在这项指标上业主提供的数据有点水份。
The filtering rules should also include automatic purging or backup of aged data and a mechanism to expire large XML files sooner.
筛选规则还应该包括对旧数据的自动清除或者备份、以及使大的XML文件不久后过期的机制。
It would be ideal to expire the cache, but NOT evict the data until I was sure I could reload it.
这将是理想的缓存过期，但不退出数据直到我确信我能装。
Where possible, avoid using data that may expire;
只要可能，避免使用可能过期的数据；
Where possible, avoid using data that may expire;
只要可能，避免使用可能过期的数据；
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