Structure consists of a private kind field , which indicates whether the specified time value is based on local time , coordinated universal time , or neither , and a private ticks field , which contains the number of 100 - nanosecond ticks that specify a date and time 结构由一个kind私有字段和一个ticks私有字段组成， kind字段指示指定的时间值是基于本地时间、协调通用时间( utc ) ，还是两者皆否，而ticks字段包含指定日期和时间的刻度数，一个刻度为100毫微秒。
With the development of the converter drive technology , the requirement for the variable frequency drive are becoming more and more strict especially for the modern converter drive employing fast switching semiconductor igbt ， though it has high pulse frequency and refreshing time of only nanoseconds , it generates emf that has adverse effect on the environment 随着频率控制传动技术的发展，对频率变速传动系统的要求越来越高，尤其是对采用快速切换的igbt半导体现代变频技术，尽管脉冲频率高或更断时间仅毫微秒内，但它们会对周围环境产生电磁场。
