您要查找的是不是：
- frequency time standard 频率时间标准
- A time standard necessary to attend a particular meet or event. 出席特定赛事或比赛所必须的规定时间。
- Wave speed equals frequency times wavelength. 波速等于频率乘以波长。
- The Hong Kong Time Standard is provided by a caesium beam atomicclock. Accuracy within fractions of a microsecond a day is maintained. 天文台利用铯原子钟，提供香港的时间标准，该钟误差每日不超过一微秒。
- The Hong Kong Observatory maintains the Hong Kong time standard and provides time signals for the public. 香港天文台负责维持香港的时间标准,以及提供报时讯号。
- Time clock signal source directly fetches from clock signal of PCI bus in the computer system or signal generator, which can generates high frequency time clock signal. 该时钟信号源直接取自于该电脑系统中PCI总线的时钟信号或是一可产生高频时钟信号的时钟信号产生器，用以供应该计数电路所需的输入时钟信号。
- The Observatory also operates the official time standard for Hong Kong, provides basic astronomical information and maintains a seismological monitoring network. 此外，又负责香港标准时间的报时服务、提供基本天文资料和操作地震监测网。
- The generating of pseudo random sequence is one of the key subjects to realize the spread spectrum technique upgrade for BPC low frequency time code radio station. 伪随机序列的产生是实现BPC低频时码发播台扩展频谱技术升级的一个重要环节。
- Of every time standard upgrade or refine, became the proof that people advances to more civilized direction. 每一次标准的升级或细化，都成了人们向更文明的方向进步的证实。
- The Observatory also operates the official time standard for Hong Kong,provides basic astronomical information and maintains a seismological monitoring network. 此外，天文台又负责香港标准时间的报时服务、提供基本天文资料和操作地震监测网。
- The accuracy of the clock is within fractions of a microsecond a day of the international time standard kept by the International Bureau of Weights and Measures in France. 该钟所报时间与位于法国的国际度量衡局所规定的国际时间标准比较,每日相差不超过一微秒。
- But the prospects for it as a widely adopted universal time standard are about as good as the frustrated aspirations for Esperanto to become the world's lingua franca. 当年许多人提倡世界语作人类通用语言，可惜壮志未酬。
- fully electronic audio frequency time delayer 全电子音频延时器
- voltage frequency time component 压频时间分量
- At the end of December 1998,some 22000 households were either paying 1.5 times standard rent,double standard rent or market rent. 截至一九九八年十二月底，缴交倍半租金、双倍租金或市值租金的租户约有22000户。
- Frequency Time Division Multiple Access 频率时间分配多路存取
- At the end of December 1998, some 22000 households were either paying 1.5 times standard rent, double standard rent or market rent. 截至一九九八年十二月底，缴交倍半租金、双倍租金或市值租金的租户约有22000户。
- Time standards set for both short and long course based on previous years'achievements. 无论短池还是长池其时间标准设置都基于先前若干年的成绩。
- Frequency Time Hopping Multiple Access 频率时间跳跃多址
- Since 1999 until recently,the two time standards have been in close enough synch to escape any need to add a leap second,NIST said. 该协会说，从1999年开始到最近几年，原子时和天文时一直处于同步状态，所以不需要增加一个闰秒。
