Quartz crystals are manufactured for frequencies from a few tens of kilohertz to hundreds of megahertz.
加工成型的石英晶体的频率可从几十千赫兹到数百兆赫兹。
Quartz crystals are also found inside test and measurement equipment, such as counters, signal generators, and oscilloscopes.
在测试测量设备中也有它们的身影，例如计数器、信号发生器及示波器。
At the same time, some of the same or higher hardness material, such as diamond, corundum, metal oxide, quartz crystals are likely to damage the material.
同时一些硬度相同或更高的物质，例如钻石、刚玉、氧化金属、石英水晶都有可能损坏这些材料。
The crystal resonator. A subharmonic of the frequency of quartz crystal. extremely effective for charging and clearing quartz crystals. activates aspects of the auric field.
“水晶共振”次谐波频率的石英水晶。非常有效去充电和清除石英水晶。启动有关灵光场。
Researchers have determined this based on a microscopic analysis of quartz crystals in pumice from the Bishop Tuff in California, the site of a super-eruption 760,000 years ago.
通过对加利福尼亚主教凝灰岩（76万年前此地曾发生过一场超级火山喷发）浮石中的石英晶体进行显微分析，研究者们确定了这一结论。
The QCM consisted of two AT cut quartz crystals, of which one was working crystal, another one was used as a reference to account for the effects of pressure and gas viscosity on the crystals.
试验中，QCM由测定和参考两个AT切向的石英晶片组成，其中作为参考的石英晶片用来反映压力增加和气体粘度对石英晶片的影响。
A coarse-grained, plutonic or intrusive igneous rock of felsic composition having large crystals of quartz, feldspar and mica.
一种粗粒的，深成的或侵入的长英质成分的火成岩，含石英、长石和云母的粗大晶体。
The primary beryl crystals were crystallized early from the pegmatitic magma in association with rock forming minerals such as quartz, Muscovite, albite and spodumene.
原生绿柱石形成于早期岩浆阶段，与造岩矿物石英、白云母、钠长石、锂辉石共生。
The primary beryl crystals were crystallized early from the pegmatitic magma in association with rock forming minerals such as quartz, Muscovite, albite and spodumene.
原生绿柱石形成于早期岩浆阶段，与造岩矿物石英、白云母、钠长石、锂辉石共生。
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