stratigraphic [strætɪ'græfɪk]

例句:

• We regard them as actural stratigraphic units produced primarily by magmatic sedimentation.
  我们把它们当作实际上的地层单元来考虑,它们主要由岩浆沉积作用所产生.
  
• The component layers have the geometry of stratigraphic units.
  一分层具有地层单元的几何形态.
  
• A compressed horizontal scale commonly is helpful in seeing stratigraphic changes.
  缩小水平比例尺一般有助于观察地层变化.