采用基于门延时的精细计数来量化被测时间间隔中与时钟不同步的部分，这样时间量就被转换成了数字量。
Both coarse count and fine count which base on the clock and gate delay separately were used to quantify them. Thus, time variable were converted into digital variable.
二次文献发表延时过程模型的建立，为研究利用二次文献查新的漏检问题提供了定量化工具。
The mathematical modeling of index documents publishing process provides a quantitative tool for the study of hit rate of index documents.
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