Ключевые слова: base, collecting, conservation, construction, demolition, digger, digging, dump, dust, earth, environment, equipment, excavator, foundation, garbage, gray, hard, hazardous, health, heavy, hole, hydraulics, industry, landfill, machinery, machinist, man, management, mine, mover, people, pit, pollution, power, recycling, red, rock, rubbish, site, stone, tip, tool, tractor, trash, waste, women, work,