您要查找的是不是：
- Journal of Time and Frequency 时间频率学报
- We've put a great deal of time and effort into this project. 我们为这一项目付出了大量的时间和精力。
- It realizes graphics protraction of time and frequency domain in every time period. 它实现了各个信号的时域和频域的图形的绘制。
- 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。
- We have to work within the parameters of time and budget. 我们工作受时间和财力所限。
- The National Institute of Standards and Technology (NIST) maintains a network of time servers that provide time and frequency services for the United States. National Institute of Standards and Technology(NIST)维护着一个时间服务器网络,这些时间服务器为美国提供时间和频率服务。
- He got to the station in the nick of time and caught the train. 他及时赶到车站,乘上了火车。
- The wavelet transform is of good localization property in the domain of time and frequency, which provides a comprehensive application in processing acoustic wave. 小波变换同时有在时间域和频率域对信号进行局部化的特点,使其在声波信号处理中有着广泛的应用前景。
- What a fearful waste of time and money! 这样浪费时间和金钱真是不得了!
- The organization of such a large-scale party takes a lot of time and energy. 组织这样大规模的聚会要花费许多时间和精力。
- Researches really take up lots of time and energy. 研究工作确实耗费很多时间和精力。
- The bridge saved them a lot of time and trouble. 那座桥使他们省去很多时间兴麻烦。
- Play it for a period of time and you will enjoy it. 打一段时间，你就会乐此不疲。
- We ascend in the order of time and of development. 我们按时间和发展顺序向上溯。
- Specify the time and frequency with which to compile audiences. 指定搜集访问者所使用的时间和频率。
- It was a waste of time and money. 简直是浪费时间和金钱。
- transformation of time and frequency domains 时频域转换
- It's a waste of time and energy. 那是浪费时间和精力。
- Following it, the synchronization of time and frequence can be decoupled.Using the timetag at the front of the data window or at the middle or at the end can be chosen freely. 本文提出了一种可以实现时间同步和频率同步的解耦，同时达到首中末点三种时标同步方式可选、同步周期可选等目标的广域相量测量实现方法。
- Oceans of time and money were spent on the project. 大量时间和大批资金都投入到这项工程。
