welding current
81Rail tracks — are used on railways (or railroads), which, together with railroad switches (or points), guide trains without the need for steering. Tracks consist of two parallel steel rails, which are laid upon sleepers (or cross ties) that are embedded in… …
82William Gould Dow — Infobox Scientist name = William Gould Dow birth date = September 30, 1895 birth place = Faribault, Minnesota, U.S. death date = October 17, 1999 (aged 104) death place = Bellevue, Washington, U.S. alma mater = University of Minnesota University… …
83Track (rail transport) — Permanent way redirects here. For other uses, see Permanent way (disambiguation). Twin rail tracks in a wooded area …
84Nitinol biocompatibility — Metal implants containing a combination of biocompatible metals or used in conjunction with other biomaterials are often considered the standard for many implant types. When materials are introduced to the body it is important not only that the… …
85Electric heating — is any process in which electrical energy is converted to heat. Common applications include heating of buildings, cooking, and industrial processes. An electric heater is an electrical appliance that converts electrical energy into heat. The… …
86автоматический — 3.3.1 автоматический пробоотборник (automatic sampler): Устройство, используемое для извлечения представительной пробы жидкости, протекающей по трубопроводу. Примечание Автоматический пробоотборник обычно состоит из зонда (щупа), экстрактора… …
Словарь-справочник терминов нормативно-технической документации
87List of United States Navy ratings — From left to right: a Special Warfare Operator 1st Class and a Boatswain s Mate 2nd Class. United States Navy ratings are general occupations that consist of specific skills and abilities. Each naval rating has its own specialty badge, which is… …
88Electric arc — An electric arc is an electrical breakdown of a gas which produces an ongoing plasma discharge, resulting from a current flowing through normally nonconductive media such as air. A synonym is arc discharge. The phenomenon was first described by… …
89Heat-affected zone — The heat affected zone (HAZ) is the area of base material, either a metal or a thermoplastic, which has had its microstructure and properties altered by welding or heat intensive cutting operations. The heat from the welding process and… …
90plasma — plasmatic /plaz mat ik/, plasmic, adj. /plaz meuh/, n. 1. Anat., Physiol. the liquid part of blood or lymph, as distinguished from the suspended elements. 2. Cell Biol. cytoplasm. 3. whey. 4. a green, faintly translucent chalcedony. 5. Physics. a …
