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1·Use the LEADS software to simulate the calculation of beam transfer, and show the envelope curve of beam transfer.

运用LEADS软件，进行了束流传输的模拟计算，并显示了束流传输包络曲线。

2·Concrete stress-strain curves under cyclic loads include not only envelope curve, but also unloading and re-loading curves.

混凝土的反复加载应力-应变曲线不仅包括骨架曲线，还包括卸载及再加载曲线。

3·Monotonic curve can be used as envelope curve for the linking of unloading points is similar to the monotonic stress-strain curve.

混凝土本构曲线上所有开始卸载的点联线基本上接近于单调加载的应力-应变曲线，因此单调加载曲线方程可以用作骨架曲线方程。

4·On such a basis, a performance function based on the shear strength envelope curve in the shape of quadratic parabola was established.

在此基础上，建立了基于二次抛物线形抗剪强度包络线的功能函数。

5·The simulation result proves: Used this converter's topology structure, the envelope curve of import electric current follows entering voltage change. And power factor correction has been realized.

仿真分析结果证明：该变换器拓扑结构能够使输入电流的包络随着收入电压变化，有效的实现了功率因数校正。

6·This function describes the envelope of the displacement curve.

这函数描绘出位移曲线的包络。