Objective: To understand the condition of validity of drugs and its range of time well.

前言：目的：了解药品标明有效期及其时间范围的情况。

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This methods allows a smart guard condition at the beginning of every business logic method that relies on the validity of the underlying Notes document.

该方法允许在每个业务逻辑方法的开头部分设置智能守卫条件，该条件依赖于底层Notes文档的有效性。

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The characteristics and validity condition of these three methods are analyzed in this paper.

末文主要分析了这三种方法的特点类型和有效性条件。

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International tribunals would still have the last word on the validity of the U.S. condition and the resulting scope of permissible U.S. naval actions.

CENTERFORSECURITYPOLICY: Key critics dissect arguments for LOST