How does the tunnel dehumidifier work?

First of all, from the treatment you care about: if you pay Laishui, your monthly income should not be less than 8000. (2) wet spraying machine operation (commonly known as manipulator) is much better than artificial shotcrete, but the accelerator and dust in shotcrete are still more harmful to human body; (3) Under normal circumstances, the first treatment measure for dangerous situations (roof caving, collapse and spalling) in the tunnel is to seal the surrounding rock with shotcrete, which means there are certain risks; ④ The second is the living environment. People often live in dormitories (4 ~ 8 people/room) on the construction site, and the working hours are irregular. Basically, they are on call 24 hours a day. Well, I won't say much about this. I hope I can help you and adopt it.