a no-go gauge will not pass over the work of correct size
81Mir — This article is about the Soviet/Russian space station. For other uses, see Mir (disambiguation). Mir …
82Tet Offensive — Infobox Military Conflict conflict=Tet Offensive partof=the Vietnam War caption=Some communist targets during the Tet Offensive date=30 January 1968 23 September 1968 place=South Vietnam result= North Vietnamese propaganda victory. U.S. and South …
83Sprint Cup Series — Sprint Cup redirects here. For the horse race, see Haydock Sprint Cup. Not to be confused with Sprint Car. Sprint Cup Series Category Stock car racing Country or region …
84Underwater searches — are procedures carried out by divers in order to find a known or suspected target object or objects in a specified search area under water. There are a number of techniques in general use by Commercial, Scientific, Public service, Military, and… …
85Seismic retrofit — Seismic retrofitting is the modification of existing structures to make them more resistant to seismic activity, ground motion, or soil failure due to earthquakes. Other retrofit techniques are applicable to areas subject to tropical cyclones,… …
86Butt joint — For the geometry in welding, see Butt joint (welding). A butt joint is a joinery technique in which two members are joined by simply butting them together. The butt joint is the simplest joint to make since it merely involves cutting the members… …
87Canadian National Railway — Canadian National system map …
88Tyrannosaurus — T. rex redirects here. For other uses, see T. rex (disambiguation). Bilateria Tyrannosaurus rex Temporal range: Late Cretaceous, 67–65.5 Ma …
89Logarithm — The graph of the logarithm to base 2 crosses the x axis (horizontal axis) at 1 and passes through the points with coordinates (2, 1), (4, 2), and (8, 3) …
90Battle of Verdun — Infobox Military Conflict conflict=Battle of Verdun partof=the Western Front of World War I caption= date=21 February ndash; 18 December 1916 place=Verdun sur Meuse, France result=France retains Verdun / Stalemate combatant1=flag|France… …
