Ключевые слова: cement, circle, connection, construction, curved, deep, dig, drink, duct, engineering, equipment, fix, hole, industrial, industry, installation, iron, irrigation, joint, junction, large, leak, main, metal, occupation, old, outdoor, outside, permeate, pipe, pipeline, plumber, plumbing, pore, renew, repair, replacement, rust, rusty, sewage, sewer, shiny, space, steel, structure, system, tap, town, tube, water,