The number of stages completed each second is given by the so-called clock rate. 每秒所完成的步骤数目用所谓的时钟频率来表示。
This article mainly addresses the maintenance period of clock frequency of SPC exchanges in China's telecommunication network. 本文主要讨论我国电信网中程控交换局时钟频率维护周期的确定问题。