Every countable open filter base which has an only accumulation point in X is convergent to the accumulation point;

X中每个有唯一聚点的可数开滤子基收敛于该聚点；

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Every time you open your web browser, your brain must filter out that noise. Your attention and focus have to push past this clutter.

每次你打开你的浏览器，你的头脑都必须滤掉这些杂音，你的注意力和焦点都得首先压制这些混乱。

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When open Session in view is implemented as a filter or interceptor, the persistence-context object remains open during view rendering.

当open Session in View模式作为过滤器或拦截器实现时，持久化上下文对象在视图呈现期间会保持打开状态。

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An open canopy allows sunlight to filter down and reach normal-scale alders, maples, sword ferns and tiny, purple wild irises.

FORBES: Days of Wine and Redwoods

"Presumably, conditions were favourable on the Bering land bridge which was more of a large filter than an open highway, " suggested Professor Poinar.

BBC: Mammoths moved 'out of America'

Some 42 countries filter and censor content out of the 72 studied by the Open Net Initiative.

FORBES: Google's 'Internet Evangelist' on the Fight for a Free and Open Internet