ep·i·taxy /ˈɛpəˌtæksi/
  外延性; 取向附生; 晶體取向接長
  epitaxy
  磊晶術
  epitaxy
  *外延 磊晶術
  epitaxy
       n : growing a crystal layer of one mineral on the crystal base
           of another mineral in such a manner that its crystalline
           orientation is the same as that of the substrate