light-duty scaffolds

light-duty scaffolds: лёгкие леса [подмости] (несущая способность до 20 МПа)

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Grip (job) — In the U.S. and Canada, grips are lighting and rigging technicians in the filmmaking and video production industries. They constitute their own department on a film set and are directed by a key grip. Grips have two main functions. The first is… … Wikipedia
History of virtual learning environments 1990s — In the history of virtual learning environments, the 1990s was a time of growth, primarily due to advent of the affordable computer and of the Internet.1990s1990* Formal Systems Inc. of Princeton, NJ, USA introduces a DOS based Assessment… … Wikipedia

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