| 1. | For both variables , the default is 5 seconds 对于这两个变量,默认的时间频率都是5秒。 |
| 2. | Verification system of time and frequency measuring instruments 时间频率计量器具检定系统 |
| 3. | An improved joint timing and frequency synchronization method for ofdm 联合时间频率同步算法 |
| 4. | Journal of time and frequency 时间频率学报 |
| 5. | The second part of this paper introduces the study of frequency and time measurement techniques 本文在第二部分详细介绍了在时间频率测量领域内的研究。 |
| 6. | Overview of the different kinds of time and frequency standards and measurement services that are available , through nist , other nmis , and the private sector 概述目前可用的美国nist 、各国国家计量院和私有的各种时间频率标准、测量设备。 |
| 7. | The time shift marked the time in history when the planet entered a new sequencing of energy that after a magnetic pole shift in 2000 , will be complete in december , 2012 时间替换标志着2000年磁极转换后行星进入新的时间频率里,会在2012年12月完成。 |
| 8. | A more in - depth discussion of commercially available time and frequency measurement equipment and standards , and how such instrumentation can be used in the metrology laboratory 市场上可用的时间频率测量设备和标准的更深入的讨论,以及此类仪器如何应用在计量实验室。 |
| 9. | The first full - color two - way video teleconferencing service is offered . the development of tfm ( time frequency multiplexing ) . the first compact disk players are available for sale in the u . s 第一个全彩色双向电视电话会议业务开通。开发tfm (时间频率多路复用) 。美国开始出售第一个光盘播放器。 |