Ключевые слова: accuracy, alignment, balance, bubble, building level, caucasian, concept, construction, construction industry, construction tool, contractor, deck, descriptive, equality, european, examining, good, hand, hand tool, hold, home renovation, instrument, level, man, measure, measurement tool, men at work, occupation, old, people, perfect, person, precise, professional, real person, red, ruler, scratched, selective focus, sentiment, single, stability, stained, symmetry, water, yellow,