晶体

• Crystals may be insulators, semiconductors, or conductors .
  晶体可以是绝缘体，半导体，或导体。
• Cesium chloride is an example of a bodycentered cubic crystal .
  氯化铯是体心立方晶体的一个例子。
• All systems requiring accurate timing will require a crystal .
  所有需要精确定时的系统都要用晶体。
• Now let us consider crystals such as diamond or sapphire .
  现在让我们考虑象钻石和蓝宝石这样的晶体。
• Skin cells just in front of them differentiate to form lenses .
  它们前面的皮肤细胞就分化而形成晶体。
• 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。
• The crystal imperfections we consider here are called point defects .
  我们认为这里的晶体缺陷是致命缺陷。
• These crystals occur in nature and are the gems known as rubies .
  这些晶体是天然存在的，人们称之为红宝石。
• This important carbide precipitates both inter and intragranularly .
  这种重要的碳化物向晶体内和晶体间沉淀。
• The channel is overlain by siltstone and lenticular beds of limestone .
  河道上面覆盖着粉砂岩和石灰岩透晶体。