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- This is the basis for the well-known cesium clock, presently the standard of frequency and time. 这就是众所周知的铯原子钟的基础，它是目前的频率和时间基准。
- A very precise clock that operates using the elements Cesium or Rubidium.A Cesium clock has an error of one second per million years. 一种极为精确的时钟;它是使用铯或铷元素运转的原子钟.;铯原子钟的误差为每百万年一秒
- Exploration for the Main Factor of the Rate Change of Industrial Cesium Clock 工业铯钟速率变化主要因素的探讨
- An Initial Test on Time Keeping Through Combination of Hydrogen Maser and Cesium Clock 氢钟和铯钟联合守时初探
- I didn't wake up until I heard the alarm clock. 直到听到闹钟的铃声我才醒来。
- That clock is a family heirloom. 那个座钟是祖传下来的。
- This is the basis for the well-known cesium clock, presently the standard of frequency and time 这就是众所周知的铯原子钟的基础，它是目前的频率和时间基准。
- I set it by the clock on the railway station. 我是按火车站的大钟对的。
- The clock ticks louder and louder in a quiet room. 钟的滴答声在静静的房间里变得越来越响。
- The grandfather clock was back in its old place. 落地式大摆钟已放回原处了。
- The little clock tinkled out the hours. 那只小钟叮叮当当地报时。
- Let's set the clock by the radio time signal. 咱们照着收音机的报时信号把钟对一对。
- Closing time at this pub is eleven o' clock. 这酒馆的打烊时间是十一点。
- A clock and two vases stood on the mantelpiece. 壁炉台上摆著一个座钟和两个花瓶。
- The clock struck at twelve o'clock sharp. 钟在整十二点钟打点。
- At midnight you'll hear the clock strike twelve. 午夜时你会听到钟打12点。
- There must be something wrong with my clock. 我的钟一定是坏了。
- This clock has outlasted several owners. 这座时钟的寿命比它的几个主人的寿命都长。
- I was so sleepy, I thought it was my alarm clock. 那个时候我很困，所以以为是闹钟在响。
- The clock began to boom out twelve. 时钟开始敲十二点。
