弹簧劲度系数与阀芯达到的最大位移、平衡位置位移呈线性递减关系；
The time which the valve core takes by reaching the balance position and the maximum position will reduce linearly when the spring stiffness coefficient increase;
通过求解弹簧中纵波的波动方程，讨论了弹簧质量对振子的振动频率及弹簧劲度系数的影响。
The effect of spring mass on oscillation frequency and elastic constant is discussed by solving the wave equation.
通过把劲度系数扩展为矩阵形式，拉伸弹簧的形变与弹力在罗伦兹变换中得到了统一。
By extending stiffness coefficient into stiffness matrix, the deformation and elastic force of tensile-spring coincides with Lorentz transformation.
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