加拿大外贸
Please note: We like to use Youngtown Sweep movement for this clock design.请问 Youngtown Sweep movement 什么意思
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不知道呀
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A quartz clock is a clock that uses an electronic oscillator that is made of a quartz crystal to keep precise time. This crystal oscillator creates a signal with very precise frequency. Generally, some form of digital logic counts the cycles of this signal and provides a numeric time display, usually in units of hours, minutes, and seconds.
请参考:http://www.makeaclock.com/about_young_town.html
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采用石英运动吗还是?
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用电子震颤器的石英表
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电子表本来都是用石英晶振频率来计时的!!
加拿大电商刚从事这行半年,对电子行业不了解,自己整理了些,算是学习,供大家分享,也请大家补充。我毕竟是个文科生,对这方面知识严重欠缺。 DVD:英文全名是Digital Video Disk, 即数字视频光 加拿大电商昨天我把提单复件发给了客户,今天收到了他回信,如下: Dear Nicholas, please send all shipping documents. We will check B/L copy and we will reply ASAP. Thank you Best Regards .........................................
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