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underground mine ventilation
/ˌʌndɚɡɹˈaʊnd mˈaɪn vˌɛntɪlˈeɪʃən/
Underground mine ventilation
01
the system that supplies fresh air and removes contaminants from underground mines
informations grammaticales
Exemples
The underground mine ventilation was upgraded to handle the deeper workings.
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