In the design of sampling clock, external clock can be used to sampling.
在采样时钟上,可以用板上时钟和外时钟采样。
参考来源 - PXI数据采集模块硬件设计·2,447,543篇论文数据，部分数据来源于NoteExpress
该文研究了基于概率同步算法的计算机外时钟同步系统设计。
The problem of designing computer external clock synchronization system with probabilistic algorithm is studied.
重点研究了基于统计同步算法的计算机外时钟同步系统的设计问题。
The problem of designing computer external clock synchronization system with PCS algorithm is studied.
顺便说一下，如果你好奇为什么在判断牙齿年龄方面、外消旋化会比碳14定义的时钟精度差之甚多，那么部分原因与温度相关。
By the way, if you're curious about why racemization is so much less accurate a clock than C-14 for dating a tooth's age, part of the explanation has to do with temperature.
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