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Overhead travelling crane:
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A machine for lifting and moving loads, that moves on wheels along overhead crane runway beams. it incorporates one or more hoists mounted on crabs or underslung trolleys
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Panel (of a tower or a mast):, английский
Any convenient portion of a tower or mast that is subdivided vertically for the purpose of determining projected areas and wind drag. panels are typically, but not necessarily, taken between intersections of legs and primary bracings
Operatingtemperature (ot):, английский
Temperature, which occurs within a system under normal operating conditions.
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