Cari
underground mine ventilation
/ˌʌndɚɡɹˈaʊnd mˈaɪn vˌɛntɪlˈeɪʃən/
Underground mine ventilation
01
the system that supplies fresh air and removes contaminants from underground mines
informasi gramatikal
Contoh-contoh
The underground mine ventilation was upgraded to handle the deeper workings.
LanGeek
