quartz

• Quartzes and rock salt have the highest conductivities .
  石英岩和岩盐的热导率最高。
• The material for the threads is spider web or quartz fibers .
  丝的材料可以用蛛丝或石英丝。
• A crystal is cut from quartz .
  晶体取自石英。
• Well-sorted quartz sandstones are generally not very abundant .
  分选良好的石英沙岩一般并不十分丰富。
• 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。
• A glass or quartz tube has tungsten electrodes sealed in each end .
  两根钨丝电极是封在玻璃管或石英管的两端。
• The radiation was filtered either by borosilicate glass or by quartz .
  辐射光源或用硼硅酸盐玻璃或用石英过滤。
• At flat the host is quartz diorite with a finegrained contact phase .
  在富来梯，主岩为细粒接触相的石英闪长岩。
• 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。
• To this class of substance belong mica , porcelain , quartz , glass , wood , etc .
  属于这类物质的有云母、瓷器、石英、玻璃、木材等等。