The part element library was constructed by object-oriented method and could be extended without changing the system structure.
采用面向对象的方法构建部件单元库，能在不改变系统结构的条件下对部件单元库进行扩充。
Based on the design concepts of the typical element, all the algorithm for elements have been established and the common and typical element library for airplane fuel system have been built.
根据典型元件的设计思想，给出了各种元件特性算法，建立了飞机燃油系统基本元件和特殊元件库。
Based on the design concepts of the typical element, all the algorithm for elements have been established and the common and typical element library for airplane fuel system have been built.
根据典型元件的设计思想，给出了各种元件特性算法，建立了飞机燃油系统基本元件和特殊元件库。
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