I went around and clumb over the back stile by the ash-hopper, and started for the kitchen.

Execution of the mission is clear out dust ash, dust removal equipment down from the cabinet, so the drained away in a big on the small ash hopper, the dirt concentration up eduction.

In the view of engineering applications, two kinds of fly ash silo structures derived from its bottom shapes are highlighted as the type of flat bottomed and the type of hopper bottomed.