矿

• The showings are just a little too small to make them an economic venture .
  那些矿化点都太小，没有经济价值。
• Phosphate rocks from different deposits vary widely in composition .
  不同的矿床出产的磷矿其组成有显著的差异。
• Bowl mills have not been widely employed for phosphate rock to date .
  钵状磨矿机至今尚未广泛应用于磷矿的磨碎。
• Concentration of ore would simply require prolonged interstratal migration .
  要富集成矿只需保持长期的层间循环。
• We'll have the men eat at the mine, so there's no dividing at home .
  我们让工人在矿里吃饭，使他们家里分不到粮。
• The host rock conformably overlies a band of siliceous chertybrecia .
  含矿主岩整合地上覆于硅质燧石角砾石带之上。
• The host rock conformably overlies a band of siliceous cherty breccia .
  含矿主岩整合地上覆于硅质燧石角砾石带之上。
• Those who lived in the mountains had mines of gold and quarries of fine marble .
  住在高山里的人拥有金矿和大理石矿。
• Pitchblende and chalcolite are much more radioactive than uranium itself .
  沥清铀矿和铜铀云母比纯铀的放射性强得多。
• This alternation feature is commonly related to emplacement of c－shaped rolls .
  蚀变的特征一般同C形的卷型矿化有关。