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Three-drum boilers — Three drum boiler, casing removed … Wikipedia
Turning — is the process whereby a centre lathe is used to produce solids of revolution . It can be done manually, in a traditional form of lathe, which frequently requires continuous supervision by the operator, or by using a computer controlled and… … Wikipedia
Biological issues in Jurassic Park — Jurassic Park , a book by Michael Crichton, with a film version directed by Steven Spielberg, revolves around the resurrection of dinosaurs via genetic engineering. Scientists and enthusiasts have brought up a number of issues with facts and… … Wikipedia

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