the gas pressure reduction ratio
11Breathing gas — is a mixture of gaseous chemical elements and compounds used for respiration. Air is the most common and only natural breathing gas. Other artificial gases, either pure gases or mixtures of gases, are used in breathing equipment and enclosed… …
12Energy policy of the United Kingdom — For energy use in practice, see Energy use and conservation in the United Kingdom The current Energy Policy of the United Kingdom is set out in the Energy White Paper of May 2007, building on previous work including the 2003 Energy White Paper… …
13Economy of the People's Republic of China — Economies of Special Administrative Regions of Hong Kong and Macau are administered separately from the rest of People s Republic of China. Therefore, the information below pertains only to mainland China unless specified otherwise. For the… …
14Netherlands, The — officially Kingdom of The Netherlands byname Holland Country, northwestern Europe. Area: 16,033 sq mi (41,526 sq km). Population (2002 est.): 16,142,000. Capital: Amsterdam; Seat of Government: The Hague. Most of the people are Dutch. Languages:… …
15Liquefied natural gas — Not to be confused with Natural Gas Liquids (NGL). Liquefied natural gas or LNG is natural gas (primarily methane, CH4) that has been converted to liquid form for ease of storage or transport. Liquefied natural gas takes up about 1/600th the… …
16high-pressure phenomena — ▪ physics Introduction changes in physical, chemical, and structural characteristics that matter undergoes when subjected to high pressure. pressure thus serves as a versatile tool in materials research, and it is especially important in… …
17Economy of the United States — Economy of United States Rank 1st (nominal) / 1st (PPP) Currency US$ (USD) …
18Climate change policy of the United States — The politics of global warming is played out at a state and federal level in the United States. Part of the Politics series Politics …
19Environmental threats to the Great Barrier Reef — The Great Barrier Reef is the world s largest coral reef system,cite web|author=UNEP World Conservation Monitoring Centre |year=1980|title=Protected Areas and World Heritage Great Barrier Reef World Heritage Area|url=http://sea.unep… …
20Liquefied petroleum gas — (also called LPG, GPL, LP Gas, or liquid propane gas) is a flammable mixture of hydrocarbon gases used as a fuel in heating appliances and vehicles. It is increasingly used as an aerosol propellant and a refrigerant, replacing chlorofluorocarbons …
