青年中文pendulum clocks的意思
pendulum clocks中文翻譯：
[儀]擺鐘
clocks───n.鐘表；[儀]時鐘（clock的復數）；v.為…計時（clock的三單形式）
pendulum───n.鐘擺；搖錘；搖擺不定的事態
mantel clocks───爐上飾鐘
pendulum board───擺板
pendulum bob───（鐘）擺錘；[儀]擺錘
chiming clocks───自鳴鐘
cycloid pendulum───圓滾線擺
pendulum clock───[儀]擺鐘
atomic clocks───原子鐘
Well-run pendulum clocks in the 1660s differed by only about 15 seconds a day. Non-pendulum clocks of the same era (ones that used rotating wheels) varied by about 15 minutes a day.───在17世紀60年代，一臺運行良好的擺鐘一天的誤差只有15秒，而同時期的非擺鐘的鐘表(即采用回轉輪的鐘表)運行一天則有15分鐘的誤差。
Unlike the original form used in early pendulum clocks, the anchor escapement permitted the pendulum to travel in a very small arc.───與在早期擺鐘中使用的原始形式不同，錨擒縱裝置允許鐘擺沿非常小的弧線運動。
Some old pendulum clocks are very beautiful. They were made carefully and they still work well.───有些古老的擺鐘很美觀，制作精巧，至今仍走得很好。
It was discovered that pendulum clocks recorded time differently depending on their location.───人們發現擺鐘在不同的地點所記錄的時間不同。
we frequently see on pendulum clocks , for example , two soldiers propped over a cornice playing dice or cards , or even sleeping.───例如，我們經常可以看到，在鐘樓上，兩個士兵倚著門擲色子或打撲克，甚至睡覺。
The National Institute of Standards and Technology used pendulum clocks to keep official time until the 1930s.───直至20世紀30年代，NIST還仍在采用擺鐘作為標準計時工具。
What's the meaning of mechanical pendulum clocks and quartz clocks, there is───機械搖擺的鐘和石英表嗎