extract ventilation
1Crankcase ventilation system — A crankcase ventilation system is a way for gases to escape in a controlled manner from the crankcase of an internal combustion engine. A common type of such system is a positive crankcase ventilation (PCV) system, the heart of which is a PCV… …
2Holland Tunnel fire — The Holland Tunnel fire occurred on the morning of Friday, May 13, 1949, in a hazardous materials truck passing through the Holland Tunnel under the Hudson River between New York and New Jersey.TimelineAt 8:30 a.m. a truck carrying eighty 55… …
3mining — /muy ning/, n. 1. the act, process, or industry of extracting ores, coal, etc., from mines. 2. the laying of explosive mines. [1250 1300; ME: undermining (walls in an attack); see MINE2, ING1] * * * I Excavation of materials from the Earth s… …
4respiration — respirational, adj. /res peuh ray sheuhn/, n. 1. the act of respiring; inhalation and exhalation of air; breathing. 2. Biol. a. the sum total of the physical and chemical processes in an organism by which oxygen is conveyed to tissues and cells,… …
5Fume hood — Infobox Laboratory equipment name = Fume hood caption = A common modern fume hood, acronym = other names = Hood Fume cupboard uses = Fume removal Blast shield inventor = manufacturer = model = related = Laminar flow cabinetA fume hood or fume… …
6Coal mining — Men leaving a UK colliery at the close of a shift Surface coal mining in Wyo …
7Tracheotomy — This article is about the surgical procedure called a tracheotomy. For a similar procedure, see Cricothyrotomy. Tracheotomy Intervention Completed tracheotomy: 1 Vocal folds 2 Thyroid cartilage 3 Cricoid cartilage 4 Tracheal rings …
81996 Channel Tunnel fire — See also: 2008 Channel Tunnel fire Location of the 1996 Channel Tunnel fire The Channel Tunnel fire of 18 November 1996 occurred on a train carrying heavy goods vehicles (HGVs) and their drivers through the Channel Tunnel from France to Great… …
9Insect morphology — Legend of body parts Tagmata : A Head, B Thorax, C Abdomen. 1. antenna 2. ocelli (lower) 3. ocelli (upper) 4. compound eye 5. brain (cerebral ganglia) 6. prothorax …
10Uranium mining — The Ranger Uranium Mine in Australia …
