Jaringan ventilasi ( ventilation network )

182 View

Jaringan ventilasi ( ventilation network ) merupakan Sistem pengaliran udara bersih dan udara kotor di tambang bawah tanah

Cari Istilah Geologi Tambang


Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.