1·Some practical techniques to lock High-stability crystal oscillators based on GPS are given in the paper.
对基于GPS锁定高稳晶体振荡器的技术要点进行了研究。
2·Professional production of high quality, high-precision quartz crystal resonator quartz crystal oscillators and crystal filters.
专业生产高品质，高精度的石英晶体谐振器石英晶体振荡器和石英晶体滤波器等。
3·The ceramic shells for crystal oscillators and audiometers have characteristics of complete sealing, good strength, small volume etc. They are easy to fix and seal.
晶体振荡器、声表器件陶瓷外壳具有全密封，强度好，外形小等特点，便于器件安装和封盖。
4·Most are crystal oscillators that take advantage of the inherent resonance of a (quartz) crystal to obtain frequency stability.
大多数是晶体振荡器，它利用(石英)晶体固有共振的优点，所以频率稳定。
5·Electronic clock used quartz oscillators, compared with the traditional mechanical clock, with more accurate, stability when more outstanding, is so easy to use, does not require constant debugging.
电子时钟使用了石英晶体振荡器，较之于传统机械钟，具有走时更加准确，稳定性更加出色，使用十分方便，不需要经常调试。