roughing work
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Roughing pump — A roughing pump is any vacuum pump (typically mechanical) used to initially evacuate a vacuum system, as a first stage towards achieving high vacuum or ultra high vacuum. Pumps that operate in the high vacuum ranges don t operate or operate… … Wikipedia
roughing — rÊŒf n. unpleasant or difficult aspect; draft, work still in the preliminary stages; uneven rocky terrain; hoodlum, ruffian (British) v. coarsen, become rough; behave violently; prepare in preliminary form, sketch adj. harsh, severe; coarse,… … English contemporary dictionary
Mark Twain — Mark Twain, photo by A. F. Bradley New York, 1907 Born … Wikipedia
Machining — Machine shop redirects here. For the record label, see Machine Shop Recordings. New Guinea in 1943. Mobile Machine Shop truck of the US Army with machinists working on automotive parts. Conventional machining is a form of subtractive… … Wikipedia
Twain, Mark — orig. Samuel Langhorne Clemens born Nov. 30, 1835, Florida, Mo., U.S. died April 21, 1910, Redding, Conn. U.S. humorist, writer, and lecturer. He grew up in Hannibal, Mo., on the Mississippi River. At age 13 he was apprenticed to a local printer … Universalium
Milling cutter — Milling cutters are cutting tools typically used in milling machines or machining centres (and occasionally in other machine tools). They remove material by their movement within the machine (e.g., a ball nose mill) or directly from the cutter s… … Wikipedia
Rolling (metalworking) — A rolling schematic In metalworki … Wikipedia
Lathe — A lathe (pronEng|ˈleɪð) is a machine tool which spins a block of material to perform various operations such as cutting, sanding, knurling, drilling, or deformation with tools that are applied to the workpiece to create an object which has… … Wikipedia
steel — 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 … Universalium
Polishing (metalworking) — Buffing redirects here. For the concept in cosmetics, see Nail buffing. Polishing and buffing are finishing processes for smoothing a workpiece s surface using an abrasive and a work wheel. Technically polishing refers to processes that use an… … Wikipedia
Susanna Moodie — Susanna Moodie, née Strickland (6 December 1803 ndash; 8 April 1885) was a British Canadian author who wrote about her experiences as a settler in Canada.Moodie was the younger sister of two other writers, Catharine Parr Traill and Agnes… … Wikipedia
