Sears Tower has been recognized as a great achievement in building very high. Architects and engineers have abandoned the pursuit on the tallest building in the world, engineers Stryuotural william lemessurier not design skyscrapers, almost half a second as the Sears tower and architect Robert sobel claimed that the technology exists to produce building. 500 high-grade wool, or nearly half a mile.
การแปล กรุณารอสักครู่..