ventilating current
1ventilating millstone — noun : a millstone having a device for inducing a strong current of air through its grooves …
2North of England Institute of Mining and Mechanical Engineers — The North of England Institute of Mining and Mechanical Engineers (NEIMME) is a British institution[clarification needed] dedicated to the research and preservation of knowledge relating to mining and mechanical engineering. Founded in 1852, the… …
3Cteniza Californica — Trapdoor Trap door , n. 1. (Arch.) A lifting or sliding door covering an opening in a roof or floor. [1913 Webster] 2. (Mining) A door in a level for regulating the ventilating current; called also {weather door}. Raymond. [1913 Webster]… …
4Trapdoor — Trap door , n. 1. (Arch.) A lifting or sliding door covering an opening in a roof or floor. [1913 Webster] 2. (Mining) A door in a level for regulating the ventilating current; called also {weather door}. Raymond. [1913 Webster] {Trapdoor spider} …
5Trapdoor spider — Trapdoor Trap door , n. 1. (Arch.) A lifting or sliding door covering an opening in a roof or floor. [1913 Webster] 2. (Mining) A door in a level for regulating the ventilating current; called also {weather door}. Raymond. [1913 Webster]… …
6weather door — Trapdoor Trap door , n. 1. (Arch.) A lifting or sliding door covering an opening in a roof or floor. [1913 Webster] 2. (Mining) A door in a level for regulating the ventilating current; called also {weather door}. Raymond. [1913 Webster]… …
7tunnels and underground excavations — ▪ engineering Introduction Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening …
8HVAC — may also stand for High voltage alternating current. See also: Glossary of HVAC HVAC systems use ventilation air ducts installed throughout a building that supply conditioned air to a room through rectangular or round outlet vents, called… …
9building construction — Techniques and industry involved in the assembly and erection of structures. Early humans built primarily for shelter, using simple methods. Building materials came from the land, and fabrication was dictated by the limits of the materials and… …
10Sago Mine disaster — wikinewshas|three articles on the accident * * *The Sago Mine disaster was a coal mine explosion on January 2, 2006, in the Sago Mine (pronEng|ˈseɪgoʊ) in Sago, West Virginia, USA near the Upshur County seat of Buckhannon. The blast and ensuing… …
