Ключевые слова: bulldozer, cambodia, conduit, construction, digging, dirty, ditch, drainage, drink, dust, energy, engineering, environmental, equipment, excavator, ground, heavy, hole, industry, infrastructure, job, large, machine, municipal, outdoor, penh, phnom, pipe, pipeline, pit, plumbing, pollution, power, problem, pumping, quarry, reconstruction, rock, safety, sand, shovel, site, system, technology, transportation, trench, utility, vehicle, water, work,