数的持久性

persistence of vision───[生理]视觉暂留；视觉残留；持续视觉

persistence of visions───[生理]视觉暂留；视觉残留；持续视觉

persistent offender───常习犯

persistent offenders───常习犯

subsistence farmer───自然经济；糊口农民

licence number───牌照号码

perfect number───[数]完全数

persistent rumours───持续的谣言

presence chamber───接见厅

If you have a complex application with a number of different databases and persistence approaches involved, DAOs can help you create a consistent API for the rest of your application to use.───如果您有一个涉及许多不同的数据库和持久性方法的复杂程序，那么DAO可以帮助您创建一个用于您将使用的其他应用程序的持久性api。

Object serialization has its well-known flaws, but in this case, it is a reasonable persistence solution because the number of form data instances that are kept in the repository is limited.───对象序列化有很多明显的缺陷，但在这种情况下，却是一个合理的持久性解决方案，原因是保存在存储库中的表单数据实例的数量是有限的。

He moved around the academic world relatively little, and his favourite pastime was mountaineering, in which he achieved a number of first ascents by sheer, dogged persistence.───他相对而言很少在学术界转换阵地，而且，他最喜欢的业余活动是登山，他通过顽强而持续不断的努力取得了多个第一。