annular hearth

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Scar — Scars redirects here. For the 1998 video game, see S.C.A.R.S. (video game). Scarring redirects here. For the act of inflicting scars, see Scarification. This article is about scar tissue. For other uses, see Scar (disambiguation). Scar… … Wikipedia
Spray forming — Spray forming, also known as spray casting, spray deposition[1] and in situ compaction,[2] is a method of casting near net shape metal components with homogeneous microstructures via the deposition of semi solid sprayed droplets onto a shaped… … 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

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