Connector Model TCP-02A/B is for connecting trays of ladder type, tray type and channel type.

直接片与梯级式、托盘式、槽式桥架配套和电缆桥架的连接。

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Methods 4 types of curve-model such as Inverse function model, Power function model, Logarithmic function model and S-function model were used to fit the trend of Type-B encephalitis incidence rate.

方法采用倒数函数、幂函数、对数函数、S型函数四个曲线函数拟合乙脑发病率，经比较选择倒数函数为较优拟合模型。

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