liquid-permeable material

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• Material culture of the Manasir — The material culture of the Manasir is very basic and primarily relies on the by products of palm tree cultivation (cf. Date cultivation in Dar al Manasir). Date trees not only constitute the main source of income and an important supply of… …   Wikipedia

• Vacuum pump — A vacuum pump is a device that removes gas molecules from a sealed volume in order to leave behind a partial vacuum. The vacuum pump was invented in 1650 by Otto von Guericke. Types Pumps can be broadly categorized according to three… …   Wikipedia

• Screen-printing — is a printing technique that uses a woven mesh to support an ink blocking stencil. The attached stencil forms open areas of mesh that transfer ink as a sharp edged image onto a substrate. A roller or squeegee is moved across the screen stencil… …   Wikipedia

• Ultra high vacuum — (UHV) is the vacuum regime characterised by pressures lower than about 10−7 pascal or 100 nanopascals ( 10−9 torr). UHV requires the use of special materials in creating the vacuum system, extreme cleanliness to maintain the vacuum system, and… …   Wikipedia

• soil mechanics — the branch of civil engineering that deals with the mechanical behavior of soil and similar materials when they are compressed or sheared or when liquids flow through them. * * * Study of soils and their utilization, especially in planning… …   Universalium

• leachate — noun The liquid produced when water percolates through any permeable material …   Wiktionary

• leak — /lik / (say leek) noun 1. an unintended hole, crack, or the like by which fluid, gas, etc., enters or escapes. 2. any avenue or means of unintended entrance or escape, or the entrance or escape itself. 3. Electricity a point where current escapes …  

• steel — steellike, adj. /steel/, n. 1. any of various modified forms of iron, artificially produced, having a carbon content less than that of pig iron and more than that of wrought iron, and having qualities of hardness, elasticity, and strength varying …   Universalium

• petroleum — petroleous, adj. /peuh troh lee euhm/, n. an oily, thick, flammable, usually dark colored liquid that is a form of bitumen or a mixture of various hydrocarbons, occurring naturally in various parts of the world and commonly obtained by drilling:… …   Universalium

• environmental works — ▪ civil engineering Introduction       infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations …   Universalium

• analysis — /euh nal euh sis/, n., pl. analyses / seez /. 1. the separating of any material or abstract entity into its constituent elements (opposed to synthesis). 2. this process as a method of studying the nature of something or of determining its… …   Universalium