精确、可靠的时间在卫星、网络安全以及电力系统设备校时等领域有着广泛的应用。
Accurate, reliable time is used widely in satellite, network security and time service for power system.
最后，阐述了网络传输时延的各种测量方法和系统时差网络计算的实现方法，分析了网络校时要素和系统时间设定要素。
Finally, the various measurements and implementation ways are expatiated, and the factors of adjusting network time and setting system time are analyzed.
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