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Definition of Air shaft
1. Noun. A shaft for ventilation.
Definition of Air shaft
1. Noun. a vertical (or near vertical) shaft that supplies ventilation to a tunnel or other underground facility ¹
¹ Source: wiktionary.com
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1. Noun. A shaft for ventilation.
1. Noun. a vertical (or near vertical) shaft that supplies ventilation to a tunnel or other underground facility ¹
¹ Source: wiktionary.com