Then it introduces the research fruit of road weight types, road impedance function model, intersection delay model, and network reliability.
介绍了道路权重的各种类型、路阻函数模型、交叉口延误模型和路网可靠度的研究成果。
In circuit design, the mathematical model of operational amplifier expanded function is expanded circuit. The circuit includes phase electric capacity, the feedback resistance and the input impedance.
运算放大器扩展功能，在电子电路设计中其数学模型为放大电路，含移相电容、反馈电阻及输入阻抗。
Prior to applying a gravity model, one has to calibrate the impedance function.
应用重力模型的之前，你应该先校准阻抗函数。
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