| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Exhausting auxiliary fan | Mining | An auxiliary fan that exhausts air from the face of a tunnel through ducting or piping and discharges it into the return side of the airway off which the tunnel branches. See also: extraction ventilation; auxiliary ventilation; suction fan. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
