back-tube sheet
41Soldering — For the song, see Soldering (song). For the product, see Solder. Desoldering a contact from a wire. Soldering is a process in which two or more metal items are joined together by melting and flowing a filler metal (solder) into the joint, the… …
42Amalgamated Association of Iron and Steel Workers — The Amalgamated Association of Iron and Steel Workers (commonly known as the AA) was an American labor union formed in 1876 and which represented iron and steel workers. It partnered with the Steel Workers Organizing Committee, CIO, in November,… …
43human cardiovascular system — ▪ anatomy Introduction organ system that conveys blood through vessels to and from all parts of the body, carrying nutrients and oxygen to tissues and removing carbon dioxide and other wastes. It is a closed tubular system in which the… …
44military technology — Introduction range of weapons, equipment, structures, and vehicles used specifically for the purpose of fighting. It includes the knowledge required to construct such technology, to employ it in combat, and to repair and replenish it.… …
45Deepwater Horizon oil spill — 2010 oil spill and BP oil spill redirect here. For other oil spills in 2010, see 2010 oil spill (disambiguation). For the 2006 oil spill involving BP, see Prudhoe Bay oil spill. For the drilling rig and explosion, see Deepwater Horizon… …
46Deindustrialization of Youngstown, Ohio — Youngstown is in the center of the Rust Belt. The deindustrialization of Youngstown, Ohio was the deindustrialization of the city of Youngstown, Ohio and surrounding areas, starting on September 19, 1977 (on what became known to locals as Black… …
47Seismic 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,… …
48Compact fluorescent lamp — Low energy light bulb redirects here. For other low energy bulbs, see LED lamp. The tubular type compact fluorescent lamp is one of the most popular types in Europe …
49Plastics extrusion — Cross section of a plastic extruder to show the screw Plastics extrusion is a high volume manufacturing process in which raw plastic material is melted and formed into a continuous profile. Extrusion produces items such as pipe/tubing, weather… …
50Spina bifida — Classification and external resources ICD 10 Q05, Q76.0 …
