The + system: variable void at different levels around the staircase.

系统同时在楼梯处包容了多样的上下贯通空间.

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Numerical Solution of Higher Order Discontinuous Nonlinear Ordinary Differential Equation System ( Variable Step Length - Runge Extrapolation - Extension Method )

高阶非线性间断常微分方程组的求解 ( 变步长RUNGE外推外延法 )

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Except for hydraulic pressure system, Variable frequency speed regulation has been used in many fields widely.

交流变频调速已广泛应用于实际生产中,但在液压系统调速领域的应用并不多.

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