protecting coating
51Georgi Markov — Georgi Ivanov Markov ( bg. Георги Иванов Марков) (March 1, 1929 – September 11, 1978) was a Bulgarian dissident.Markov originally worked as a novelist and playwright, but in 1969, he defected from Bulgaria, then a communist state under the… …
52Hot-dip galvanizing — is a form of galvanization. It is the process of coating iron or steel with a thin zinc layer, by passing the steel through a molten bath of zinc at a temperature of around 860 °F (460 °C). When exposed to the atmosphere, pure zinc reacts with… …
53Flat roof — A flat roof is a type of covering of a building. In contrast to the sloped form of a roof, a flat roof is horizontal or nearly horizontal. Materials that cover flat roofs should allow the water to run off freely from a very slight… …
54Abrasive blasting — Sandblasting a stone wall Diesel powered compressor used as an air supply for sandblasting …
55Combustion chemical vapor deposition — (CCVD) is a chemical process by which thin film coatings are deposited onto substrates in the open atmosphere. Contents 1 History 2 Principles and procedure 3 Remote combustion chemical v …
56scale — I. noun Etymology: Middle English scole, scale bowl, scale of a balance, from Old Norse skāl; akin to Old Norse skel shell more at shell Date: 14th century 1. a. either pan or tray of a balance b. a beam that is supported freely in the center and …
57Aspirin — Asprin redirects here. For the author, see Robert Asprin. Aspirin …
58Black Death — ), [ [http://www.pasteur.fr/actu/presse/press/07pesteTIGR E.htm Researchers sound the alarm: the multidrug resistance of the plague bacillus could spread] ] but recently attributed by some to other diseases.The pandemic is thought to have begun… …
59Elephant — Taxobox name = Elephant image width = 250px image caption = An African Bush Elephant near the border of the Serengeti and Ngorongoro Conservation Area in Tanzania. regnum = Animalia phylum = Chordata subphylum = Vertebrata classis = Mammalia ordo …
60Aphid — This article is about the insect. For other uses, see Aphid (disambiguation). Aphids Temporal range: Permian–Present …
