Ключевые слова: a plan, a project sign, an engineer, angle measurement, black, build, caliper, calliper, care, circle, construction, correct, design, diameter, drawing, east, electricity, engineering, glass, glasses, graphite, green, increase, industrial, industry, line, metal, north, paper, pencil, plan, protractor, rectangle, scale, scheme, south, square, steel, surveying, surveyor, tablet, west, whatman, white, wood,