foot wall

常見例句

• A vertical fault has neither a footwall nor a hanging wall.
  具有直立斷層面的斷層既無上盤，也無下盤。
• Then the block in the southern side of this fault is the hanging wall and the block in the northern side of this fault is the footwall.
  那么，位于這條斷層南側(cè)的巖層是上盤，位于這條斷層北側(cè)的巖層則是下盤。
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