The calculation and analysis results of keysteel structures are obtained. The correctness of the theoretical analysis is verified by mechanical test on some important points of the beam.
得出主要钢结构的计算分析结果,并对其关键部分进行力学测试,验证了理论分析的正确性。
3
Key industries, including meatpacking and steel, became highly concentrated in response to the reduced cost of transportation.