Ключевые слова: 1009, area, arm, assembly, balance, ballast, bearing, boom, building, cab, civil, construction, counter, crane, driver, engineering, figuring, free, gantry, giddiness, hoisting, jib, jip, live, load, lot, luffing, mechanical, mount, of, operator, ring, rotating, site, structual, surface, swing, technical, technique, technology, topslewing, tower, transport, trolley, weight,