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bkconn t1_jdvmira wrote

Reply to comment by Sioul_the_resilient in All 7 Pennsylvania chocolate factory explosion victims found by Substantial-Pass-992

You just reminded me of this incredibly satisfying dust collection system I saw yesterday. The stone debris being drilled from a giant tunnel through a mountain bust be completely de-dusted in order to keep the tunnel air breathable for all the workers inside.

https://youtu.be/Bie00h3lxKI?t=200

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