act as a brake on progress

См. также в других словарях:

• brake — I UK [breɪk] / US noun [countable] Word forms brake : singular brake plural brakes * 1) [usually plural] the equipment in a car, bicycle, or other vehicle that you use for slowing down or stopping The brakes failed and the car crashed into a tree …   English dictionary

• brake — brake1 [ breık ] noun count * 1. ) usually plural the equipment in a car, bicycle, or other vehicle that you use for slowing down or stopping: The brakes failed and the car crashed into a tree. We heard a screech of brakes as Jill s car pulled up …   Usage of the words and phrases in modern English

• Vacuum brake — The vacuum brake is a braking system used on trains. It was first introduced in the mid 1860s and a variant, the automatic vacuum brake system became almost universal in British train equipment, and in those countries influenced by British… …   Wikipedia

• Friction brake — Friction Fric tion, n. [L. frictio, fr. fricare, frictum,to rub: cf. F. friction. See {Fray} to rub, arid cf. {Dentifrice}.] 1. The act of rubbing the surface of one body against that of another; attrition; in hygiene, the act of rubbing the body …   The Collaborative International Dictionary of English

• Perceptual control theory — (PCT) is a psychological theory of animal and Human behavior originated by maverick scientist William T. Powers. In contrast with other theories of psychology and behavior, which assume that behavior is a function of perception that perceptual… …   Wikipedia

• Mahdist War — Depiction of the Battle of Omdurman (1898). Date 1881–1899 …   Wikipedia

• Business and Industry Review — ▪ 1999 Introduction Overview        Annual Average Rates of Growth of Manufacturing Output, 1980 97, Table Pattern of Output, 1994 97, Table Index Numbers of Production, Employment, and Productivity in Manufacturing Industries, Table (For Annual… …   Universalium

• United States — a republic in the N Western Hemisphere comprising 48 conterminous states, the District of Columbia, and Alaska in North America, and Hawaii in the N Pacific. 267,954,767; conterminous United States, 3,022,387 sq. mi. (7,827,982 sq. km); with… …   Universalium

• Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics       Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity.       Computer scientist Manindra Agrawal of the… …   Universalium

• Economic Affairs — ▪ 2006 Introduction In 2005 rising U.S. deficits, tight monetary policies, and higher oil prices triggered by hurricane damage in the Gulf of Mexico were moderating influences on the world economy and on U.S. stock markets, but some other… …   Universalium

• environment — environmental, adj. environmentally, adv. /en vuy reuhn meuhnt, vuy euhrn /, n. 1. the aggregate of surrounding things, conditions, or influences; surroundings; milieu. 2. Ecol. the air, water, minerals, organisms, and all other external factors… …   Universalium