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- quartz crystal electric clock 石英电钟
- The ADC aperture jitter must be minimal, and the sampling clock generated from a low phase-noise quartz crystal oscillator. ADC的孔径抖动必需尽可能的小，而且要使用低相位噪声的石英晶体振荡器作为采样时钟发生器。
- crystal electric clock 石英电钟
- In a quartz watch the oscillator is a quartz crystal, which has the property that it vibrates in the presence of an electric field. 在石英钟表中,振荡器是一块在电场中震动的石英水晶。
- Objective: To design a quartz crystal sensor and associated electric amplifying and display circuits fordetection of DNA hybridization reation. 目的：设计一种用于检测某种DNA杂交反应的石英晶体传感器及其放大、显示电路。
- In 1968, prototype quartz crystal watches were introduced. 1968年推出样机石英手表.
- The quartz crystal didn't vibrate until the voltage was applied. 直到电压加上去以后石英晶体才开始振荡。
- Watches with quartz crystal movements never have to be wound. 装有石英晶体机蕊的手表毋需上发条。
- Quartz crystal is perfectly crystallized. 石英晶体是完美的结晶。
- Today, quartz crystal clocks are generally used on the seismograph stations. 目前，地震台站一般采用石英晶体钟。
- Research on principles and properties of a quartz crystal viscosity sensor. 石英晶体粘度传感器原理及特性研究。
- "The Crystal Resonator".A subharmonic of the frequency of quartz crystal. “水晶共振”次谐波频率的石英水晶。
- Quartz crystal resonators are devices that supply standard time base. 石英晶体谐振器是一种提供基准时基的器件。
- Quartz crystals are seldom used in such handsets. 石英晶体是很少使用这种手机。
- It is widely used in mini-radiostation,moobilecommunication,pager,interphone,CTV,video cassette recorder,remote control unit,telephone,electric clock,VCD,DVD,computer,ect . 广泛应用于小型无线电台，移动通讯机，寻呼台，对讲机，CTV，录象机，遥控器，电话机，电子钟，VCD，DVD，计算机，游戏机等电子设备及仪器中。
- The quartz crystal in the watch is made to vibrate at a frequency of 56,000 times a second. 使钟表里的石英晶体以每秒56，000次的频率振荡。
- It looks like quartz crystals sticking up out of the dark hollow. 它象石英晶体，在黑色的空间耸立着。
- These clocks depend on electricity and the vibrations of the atoms of a quartz crystal, and are very complicated. 这些钟靠电和石英晶体的原子振荡走时，是十分复杂的。
- The popular oscillator design which uses a resistor, one or more logic gates, a quartz crystal, and a couple of capacitors should never be used! 一般振荡器设计都用一个电阻、一个或几个逻辑门、一个晶体、两个电容，在这里绝对不能用。
- LC oscillators have better phase noise, but the lowest noise is obtained with the use of a quartz crystal oscillator. LC谐振器利用石英晶体振荡器产生基准源，因此抖动较小。
