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系统内部各个要素及其组织形式称为系统的结构;系统在一定环境中所发挥的作用称为系统的功能。结构与功能这一对范畴是普遍存在的。DNA分子的双螺旋结构决定了它的遗传功能;牛顿力学的结构决定了它解决宏观低速力学问题的功能;相对论、量子力学的结构则决定了它
Each element within the system and its organization form is called the system structure; the system’s role in a certain environment is called the system’s function. This category of structure and function is ubiquitous. The double helix structure of the DNA molecule determines its genetic function; the structure of Newtonian mechanics determines its function to solve macroscopic low-speed mechanical problems; the structure of relativity and quantum mechanics determines it.