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Air Conditioning A system that cools the air in a building. کولر / تهویه مطبوع Architect A person who designs buildings. معمار Autumn The season between summer and winter; fall. پاییز Beam A long, strong piece of wood or steel that holds up a floor or roof. It is horizontal. تیر (افقی) Block (concrete) A large rectangular brick made of concrete. بلوک سیمانی Boiler A machine that heats water for a building. دیگ بخار / بویلر Bolt To fasten things together with a metal fastener (a bolt). پیچ و مهره