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...ng a series of steps to promote oxygen uptake in a .owing stream. casing A pipe or tube placed in a bore hole to support the sides of the hole and ...mation by placing metal strips, or coupons, of a known weight in a tank or pipe.

* pipe

...of the resistance to liquid .ow that results from the wall roughness of a pipe or channel.

* downcomer A pipe directed downward.

[[ملف:Apothecary smoking pipe.jpg|thumb|150px|صيدلي يدخن في الداخل(An Apothecary Smoking ...s in Fact and Fancy" (السجائر بين الواقع والخيال) الذي كُتب في عام 1906، و"Pipe and Pouch: The Smokers Own Book of Poetry" (الغليون والجيب: د

11. Klauer, J. An examination of pipe self-cleaning in high-purity water systems. Ultrapure Water 2001, 18 (3), 5