The helmet crew is a professional team for treating the disaster accidents such as the mine fire, mine gas, mine dust, mine water, and roof, etc.

The numerical Simulation which applying CFD software FLUENT to the hot blast shaftless stove with Multi-burner-port Annular Flameless Ceramic burner is introduced in this paper.

Some people say the brotherhood is the evergreen tree, quietly with my sweat to irrigate, then grow must grow tall evergreen trees, green to never change color.