speed-controlled conveyer

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Escalator — For the album by Sam Gopal, see Escalator (album). Escalators in a Copenhagen Metro station, Denmark, 2007 Escalator in action, 2011 An e … Wikipedia
theatre, Western — ▪ art Introduction history of the Western theatre from its origins in pre Classical antiquity to the present. For a discussion of drama as a literary form, see dramatic literature and the articles on individual national literatures.… … Universalium
pneumatic device — Any of various tools and instruments that generate and use compressed air. Examples include rock drills, pavement breakers, riveters, forging presses, paint sprayers, blast cleaners, and atomizers. Compressed air power is flexible, economical,… … Universalium

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