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单词 air crossing
释义

Definition of air crossing in English:

air crossing

noun
Mining
  • A structure for carrying one airway over another in a mine.

Origin

Mid 19th century; earliest use found in English and Foreign Mining Glossary.

Definition of air crossing in US English:

air crossing

noun
Mining
  • A structure for carrying one airway over another in a mine.

Origin

Mid 19th century; earliest use found in English and Foreign Mining Glossary.

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更新时间:2025/6/19 16:57:32