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21Virus — This article is about the biological agent. For other uses, see Virus (disambiguation). For a generally accessible and less technical introduction to the topic, see Introduction to viruses. Viruses …
22Scuba set — A scuba diver in usual sport diving gear A scuba set is an independent breathing set that provides a scuba diver with the breathing gas necessary to breathe underwater during scuba diving. It is much used for sport diving and some sorts of work… …
23M60 machine gun — Infobox Weapon name=Machine Gun, 7.62 mm, M60 caption=M60 machine gun origin=flagcountry|United States type= General purpose machine gun is ranged=yes service= 1957 present used by=See Operators wars= Vietnam War Cambodian Civil War Gulf War War… …
24automobile — automobilist /aw teuh meuh bee list, moh bi list/, n. /aw teuh meuh beel , aw teuh meuh beel , aw teuh moh beel, beuhl/, n. 1. a passenger vehicle designed for operation on ordinary roads and typically having four wheels and a gasoline or diesel… …
25Steyr AUG — Infobox Weapon name=AUG caption=Steyr AUG A1 with convert|508|mm|in|1|sp=us|abbr=on barrel origin=flag|Austria type=Assault rifle is ranged=yes service=1978–present used by=See Users wars=East Timor, Afghanistan, Iraq designer=Horst Wesp, Karl… …
26Lycoming O-320 — O 320 A Lycoming O 320 D2A installed in a Symphony SA 160 Type …
27Two-wheel tractor — in Italy (2008) Two wheel tractor or walking tractor are generic terms understood in the USA and in parts of Europe to represent a single axle tractor, which is a tractor with one axle, self powered and self propelled, which can pull and power… …
28lower vascular plant — ▪ biology Introduction formerly pteridophyte, also called vascular cryptogam, any of the spore bearing vascular plants, including the ferns, club mosses, spike mosses, quillworts, horsetails, and whisk ferns. Once considered of the… …
29Chevrolet Nova — Infobox Automobile boxcolor=darkgreen name=Chevrolet Nova manufacturer=General Motors (1962 1979) NUMMI (1985 88) production=1962 1979 1985 1988 class=Compact (1962 1979) Subcompact (1985 88) successor=Chevrolet CitationThe Chevrolet Nova or… …
30Buoyancy compensator (diving) — Stab jacket redirects here. For a type of body armor, see stab vest. A buoyancy compensator (or buoyancy control device, BC or BCD) is a piece of diving equipment worn by divers to provide: * life saving emergency buoyancy both underwater and on… …
