These two scales are numerically similar over their range of validity.
在其范围内的有效性，这两个表的数字相似。
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。
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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