safety shutdown valve
51Thermal power station — Republika Power Plant, a thermal power station in Pernik, Bulgaria …
52Well integrity — is defined by [http://www.standard.no/imaker.exe?id=5738 NORSOK D 010] as “Application of technical, operational and organizational solutions to reduce risk of uncontrolled release of formation fluids throughout the life cycle of a well”. There… …
53F-22 cockpit — When the aircraft was introduced in January 2003, the F 22 Raptor s cockpit represented a zenith in the so called “glass cockpit” without any traditional flight instruments and was a marked improvement on the cockpit design of previous advanced… …
54Ozone depletion — Image of the largest Antarctic ozone hole ever recorded (September 2006) Ozone depletion describes two distinct but related phenomena observed since the late 1970s: a steady decline of about 4% per decade in the total volume of ozone in Earth s… …
55Mercury-Redstone 4 — Mission insignia Mission statistics Mission name Mercury Redstone 4 Spacecraft name Liberty Bell 7 Spacecraft mass 1,286 …
56Industrial Review — ▪ 1994 Introduction The period since 1990 was proving a difficult time for the older industrialized economies, which had suffered from prolonged recession at home, and also for the previously centrally planned economies of Eastern Europe… …
57Criticism of Windows Vista — This article is about the criticism that applies specifically to Vista. For criticism applying to several or all versions of Microsoft Windows, see Criticism of Microsoft Windows. This article is part of a series on Windows Vista New features… …
58Refueling and Overhaul — In the United States Navy, Refueling and Overhaul (ROH) refers to a lengthy process or procedure performed on nuclear powered Naval ships, which involves replacement of expended nuclear fuel with new fuel and a general maintenance fix up,… …
