Ключевые слова: absent, accident, air, arrow, background, battery, breach, break, breakage, broken, deficit, end, engineer, factory, finished, fitter, gauge, gauging, hand, heater, heating, home, house, lack, leak, leakage, liquid, locksmith, low, lower, man, manometer, no, off, pipe, pipeline, pipework, piping, pressure, problem, radiator, repair, repairman, shortage, showing, water, worker, zero,