A clan fortress is a fortified defensive structure of a Group of people related by blood or marriage

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Deutsch: Zelle / Español: Celda / Português: Célula / Français: Cellule / Italiano: Cellula /

A Cell is described as an electrochemical system consisting of an anode and a cathode immersed in an electrolyte. The anode and cathode may be separate metals or dissimilar areas on the same metal. The cell includes the external circuit, which permits the flow of electrons from the anode toward the cathode.

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Deutsch: Korrosion / Español: Corrosión / Português: Corrosão / Français: Corrosion / Italiano: Corrosione /

Corrosion is describd as the act or process of corroding.

See also:
"Corrosion" is in the UNSPSC Code "12163600"
Corrosion inhibitors

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Chlorofluorocarbons (CFCs) are a class of man-made chemicals known by such tradenames as "Freon," "Genetron," and "Isotron."

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The word civilization refers to a condition of relative advancement in human society and culture.

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Deutsch: Bauwesen / Español: Construcción / Português: Construção / Français: Construction / Italiano: Costruzione /

Construction is described as an energy-consuming subsector of the industrial sector that consists of all facilities and equipment used to perform land preparation and construct, renovate, alter, install, maintain, or repair major Infrastructure or individual systems therein.

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Condenser Coil has to do with a network of refrigerant-filled tubes where heat leaves the hot refrigerant vapor. The vapor then condenses into a liquid capable of absorbing more heat.

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Compound microscopes are optical / light microscopes that use a single light path. Both monocular and binocular versions are available. Typically, compound microscopes are used for viewing very small specimens such as cells pond life.

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