鸽子呼吸系统线路

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　　Spatial structures of all kinds show an inspiration which usually endued with by the nature. Nature is always constructing the most economical building. There are inexhaustible configurations in nature, pretty and rational to be chosen. The creativity of the nature exceeds the human ingenuity ever and again. Spatial structure will be understood and developed better with the principles of bionic engineering.
　　Bionics is a verge branch of science, which solves the problems in project or society, with biological knowledge and methods. It comes from the mutual combination of life science and engineering technology. In the defense against calamity, the creatures formed variously their physical structures in wonderful configuration, high strength and rigidity, able to withstand outside disadvantageous action. It is surprising that they make their dens and nests in needs and win the most large, firm, marvelous shapes but consumed least materials. It proves that all th