gas-supply pipe
41Glossary of environmental science — This is a glossary of environmental science.Environmental science is the study of interactions among physical, chemical, and biological components of the environment. Environmental science provides an integrated, quantitative, and… …
42Valve — This article is about the flow control device. For the game developer, see Valve Corporation. For the electronic component, see Vacuum tube. For other uses, see Valve (disambiguation). These water valves are operated by handles. A valve is a… …
43North America — North American. the northern continent of the Western Hemisphere, extending from Central America to the Arctic Ocean. Highest point, Mt. McKinley, 20,300 ft. (6187 m); lowest, Death Valley, 276 ft. (84 m) below sea level. 400,000,000 including… …
44Liste der Erdgaspipelines — In dieser Liste der Erdgaspipelines werden Pipelines geführt, die Erdgas transportieren. Inhaltsverzeichnis 1 Afrika 2 Asien 3 Europa 4 Nordamerika …
45List of Statutory Instruments of the United Kingdom, 2007 — This is an incomplete list of Statutory Instruments of the United Kingdom in 2007. NOTOC 1 100* Cider and Perry and Wine and Made wine (Amendment) Regulations 2007 S.I. 2007/4 * Customs and Excise (Personal Reliefs for Special Visitors)… …
46District heating — Biomass fired district heating power plant in Mödling, Austria …
47Cross-linked polyethylene — PEX redirects here. For other uses, see Pex (disambiguation). Cross linked polyethylene, commonly abbreviated PEX or XLPE, is a form of polyethylene with cross links. It is formed into tubing, and is used predominantly in hydronic radiant heating …
48Screw thread — Internal and external threads illustrated using a common nut and bolt. The screw and nut pair can be used to convert torque into linear force. As the screw (or bolt) is rotated, the screw moves along its axis through the fixed nut, or the non… …
49respiration, human — ▪ physiology Introduction the process by which oxygen is taken up and carbon dioxide discharged. The design of the respiratory system The human gas exchanging organ, the lung, is located in the thorax, where its delicate tissues are… …
50Petroleum Development Oman — Petroleum Development of Oman PDO شركة تنمية نفط عمان Type Government owned corporation Industry Oil Gas Founded 1925 (as Petroleum Development of Oman and Dhofar ) 1967 (as Petroleum Development Oman ) Headquarters …
