grading sieve

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• sieve analysis — noun : a grading by size of particles of powdered or granulated material done with a sieve …   Useful english dictionary

• wood — wood1 woodless, adj. /wood/, n. 1. the hard, fibrous substance composing most of the stem and branches of a tree or shrub, and lying beneath the bark; the xylem. 2. the trunks or main stems of trees as suitable for architectural and other… …   Universalium

• Wood — /wood/, n. 1. Grant, 1892 1942, U.S. painter. 2. Leonard, 1860 1927, U.S. military doctor and political administrator. * * * I Hard, fibrous material formed by the accumulation of secondary xylem produced by the vascular cambium. It is the… …   Universalium

• Whitewater — is formed in a rapid, when a river s gradient drops enough to disturb its laminar flow and create turbulence, i.e. form a bubbly, or aerated and unstable current; the frothy water appears white. The term is also used loosely to refer to less… …   Wikipedia

• Coffee processing — Main article: Coffee Traditional coffee drying in Boquete, Panamá Processing of coffee is the method converting the raw fruit of the coffee plant into the coffee. The cherry has the fruit or pulp removed leaving the seed or bean which is then… …   Wikipedia

• Fruit preserves — Jam redirects here. For other uses, see Jam (disambiguation). Five varieties of fruit preserves (clockwise from top): apple, quince, plum, squash, orange (in the center) Fruit preserves are preparations of fruits and sugar, often canned or sealed …   Wikipedia

• tea — tealess, adj. /tee/, n. 1. the dried and prepared leaves of a shrub, Camellia sinensis, from which a somewhat bitter, aromatic beverage is prepared by infusion in hot water. 2. the shrub itself, extensively cultivated in China, Japan, India, etc …   Universalium

• riddle — riddle1 [rid′ l] n. [ME ridil < OE rædels, akin to rædan, to guess, READ1] 1. a problem or puzzle in the form of a question, statement, etc. so formulated that some ingenuity is required to solve or answer it; conundrum 2. any puzzling,… …   English World dictionary

• Constructivism (learning theory) — Jean Piaget: founder of Constructivism Constructivism is a theory of knowledge (epistemology)[1] that argues that humans generate knowledge and meaning from an interaction between their experiences and their ideas. During infancy, it was an… …   Wikipedia

• The Classic of Tea — Lu Yu: The Classic of Tea The Classic of Tea or Tea Classic (simplified Chinese: 茶经; traditional Chinese …   Wikipedia

• Huller — A huller (or sometimes called a rice husker) is a kind of agricultural machinery to hull rice.To hull rice is to remove chaffs, the outer husks of the grain. There were many ways to hull rice in ancient times, but nowadays a huller, or rice… …   Wikipedia