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单词 pillar wall
释义

Definition of pillar wall in English:

pillar wall

noun
Mining
  • The wall or face of a pillar.

Origin

Mid 19th century; earliest use found in Andrew Ure (1778–1857), chemist.

 
 

Definition of pillar wall in US English:

pillar wall

noun
Mining
  • The wall or face of a pillar.

Origin

Mid 19th century; earliest use found in Andrew Ure (1778–1857), chemist.

 
 
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更新时间:2024/11/10 17:51:42