to repair equipment
121space exploration — Investigation of the universe beyond Earth s atmosphere by means of manned and unmanned spacecraft. Study of the use of rockets for spaceflight began early in the 20th century. Germany s research on rocket propulsion in the 1930s led to… …
122American Recovery and Reinvestment Act of 2009 — Stimulus bill redirects here. For other uses, see Stimulus bill (disambiguation). ARRA redirects here. For other uses, see ARRA (disambiguation). American Recovery and Reinvestment Act of 2009 Full title An act making supplemental appropriations… …
123Professional diving — Hardhat diving redirects here. Often, hardhat diving is used to specifically mean diving in the old type Standard diving dress. A US Navy diver at work. The umbilical supplying air from the surface is clearly visible Professional diving is a type …
124BTR-D — Infobox Weapon name=BTR D caption= origin=Soviet Union type=Airborne multi purpose tracked armoured personnel carrier is vehicle=yes service=1974 present used by=See Operators wars=See Service history designer=Volgograd Tractor Plant design… …
125steel — steellike, adj. /steel/, n. 1. any of various modified forms of iron, artificially produced, having a carbon content less than that of pig iron and more than that of wrought iron, and having qualities of hardness, elasticity, and strength varying …
126Submarine communications cable — A cross section of a submarine communications cable. 1 Polyethylene 2 Mylar tape 3 Stranded steel wires 4 Aluminium water barrier 5 Polycarbonate 6 Copper or aluminium tube 7 Petroleum jelly 8 Optical fib …
127USS Cascade (AD-16) — USS Cascade (AD 16), the only ship of its class, was a destroyer tender in the United States Navy.Originally designed as a passenger freighter, the Cascade was launched on 6 June 1942 by Western Pipe and Steel Company in San Francisco, California …
128Pennsylvania Railroad — Infobox SG rail railroad name=Pennsylvania Railroad logo filename=Pennsylvania Herald.png logo size=100 marks=PRR locale=Chicago and St. Louis to New York City and Washington, DC start year=1846 end year=1968 successor line=Penn Central old gauge …
