- tube scrapers
- • четка за прочистване на тръби
English-Bulgarian polytechnical dictionary . 2013.
English-Bulgarian polytechnical dictionary . 2013.
Tube cleaning — The process of tube cleaning describes the activity of, or device for, the cleaning and maintenance of fouled tubes. The need for cleaning arises because the that is transported through the tubes may cause deposits and finally even obstructions.… … Wikipedia
hand tool — any tool or implement designed for manual operation. * * * Introduction any of the implements used by craftsmen in manual operations, such as chopping, chiseling, sawing, filing, or forging. Complementary tools, often needed as auxiliaries to… … Universalium
percussion instrument — a musical instrument, as the drum, cymbal, triangle, xylophone, or piano, that is struck to produce a sound, as distinguished from string or wind instruments. [1870 75] * * * A musical instrument that is struck (or sometimes shaken or scraped) to … Universalium
mining — /muy ning/, n. 1. the act, process, or industry of extracting ores, coal, etc., from mines. 2. the laying of explosive mines. [1250 1300; ME: undermining (walls in an attack); see MINE2, ING1] * * * I Excavation of materials from the Earth s… … Universalium
Crystallization — Crystallizing and Crystallized redirect here. For the action adventure video game, see Crystalis. For the 2009 song by The xx, see Crystalised. For other uses, see Crystallization (disambiguation). Crystallization … Wikipedia
environmental works — ▪ civil engineering Introduction infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations … Universalium
Native American music — Introduction music of the indigenous peoples of the Western Hemisphere. The Americas contain hundreds of native communities, each with its own distinctive history, language, and musical culture. These communities although united in placing… … Universalium
Watercolor painting — For other uses, see Watercolors (disambiguation). An artist working on a watercolor using a round brush Watercolor (US) or watercolour (UK and Commonwealth), also aquarelle from French, is a painting method. A watercolor is the … Wikipedia
List of inventors — This is a list of inventors. See also: List of scientists, Timeline of invention, List of inventions named after people, List of inventors killed by their own inventions, and . Alphabetical list compactTOC NOTOC A * Vitaly Mikhaylovich Abalakov,… … Wikipedia
Pipeline transport — An elevated section of the Alaska Pipeline … Wikipedia
Seashell — A seashell, also known as a sea shell, is the common name for a hard, protective outer layer, a shell, or in some cases a test , that was created by a sea creature, a marine organism. The shell is part of the body of a marine animal, in most… … Wikipedia