centred valve head
21metallurgy — metallurgic, metallurgical, adj. metallurgically, adv. metallurgist /met l err jist/ or, esp. Brit., /meuh tal euhr jist/, n. /met l err jee/ or, esp. Brit., /meuh tal euhr jee/, n. 1. the technique or science of working or heating metals so as… …
22DIRAVI — is the name given by Citroën to its proprietary power steering system, first seen in 1970. DIRAVI is an acronym for Direction à rappel asservi literally meaning steering with controlled return more accurately described in English as power… …
23Clavier-Übung III — Johann Sebastian Bach, 1746 The Clavier Übung III, sometimes referred to as the German Organ Mass, is a collection of compositions for organ by Johann Sebastian Bach, started in 1735–6 and published in 1739. It is considered to be Bach s most… …
24Calendar of 1997 — ▪ 1998 JANUARY JANUARY 1 Ghanaian Kofi Annan replaces Egyptian Boutros Boutros Ghali in the position of United Nations secretary general. Among those knighted by Queen Elizabeth II in the annual New Year s Day ceremony is pop musician …
25cephalopod — /sef euh leuh pod /, n. 1. any mollusk of the class Cephalopoda, having tentacles attached to the head, including the cuttlefish, squid, and octopus. adj. 2. Also, cephalopodic, cephalopodous /sef euh lop euh deuhs/. belonging or pertaining to… …
26energy conversion — ▪ technology Introduction the transformation of energy from forms provided by nature to forms that can be used by humans. Over the centuries a wide array of devices and systems has been developed for this purpose. Some of these energy …
27Perfect Dark — This article is about the Nintendo 64 video game. For other uses, see Perfect Dark (disambiguation). Perfect Dark …
28ancient Greek civilization — ▪ historical region, Eurasia Introduction the period following Mycenaean civilization, which ended in about 1200 BC, to the death of Alexander the Great, in 323 BC. It was a period of political, philosophical, artistic, and scientific… …
29rocket and missile system — ▪ weapons system Introduction any of a variety of weapons systems that deliver explosive warheads to their targets by means of rocket propulsion. Rocket is a general term used broadly to describe a variety of jet propelled missiles… …
30List of characters in The Archers — This is a list of many of the characters from the long running British radio soap The Archers .A list of all Archers characters, and the actors who played them, can be found [http://www.azande.demon.co.uk/archers/castlist.htm here] , although the …
