Z It's a cubic equation. There is actually a formula.
这是一个三次方程，事实上是有一个公式可以解出。
The questionnaire concludes that the model of quantity is a cubic equation.
调查问卷的统计结果显示，我国大学受赠量模型的一般形式为三次方程式。
In this paper, the cubic equation is simplified into a quadratic equation, thus greatly simplifying the calculation.
本文将三次方程简化为二次方程，使计算得到很大简化。
Based on the component analysis, a new calculation method for the volume factor of formation crude oil was proposed by cubic equation of state.
在组分分析的基础上，采用立方型状态方程建立了计算原油体积系数的新方法。
It is rather complicated to compute the neutral axis in partially pre-stressed concrete beams after cracking, since we have to solve a cubic equation.
计算部分预应力混凝土梁开裂后截面应力时，需求解中和轴高度的三次方程，使计算显得比较复杂。
In riser design of steel casting, modulus method is the most widely used method, and the cubic equation method is a most close method in modulus method.
在铸钢件冒口设计中，模数法是一个广泛应用的计算方法，三次方程解析法是模数法中较为严密的计算方法。
This paper discussed an elementary solution to the envelope of a kind of family of curves of which the equation was one of the cubic equations in regard to a parameter.
本文论述曲线族的方程为关于参数的三次方程时，其包络曲线方程的初等求法。
This, from another aspect, confirms that the proposed hard-body equation of state represents repulsive pressure term of cubic equation of state for real liquids with good precision.
又从另一侧面验证了所提出的刚体状态方程确能较好地代表实际流体分子的斥力项，为开发较好的立方型方程提供了参考。
Applying the operation on three ary number, we got the formula that was applied to seeking the roots of normally cubic equation, and proved that the result is consistent with Cardans formula.
应用三元数运算，推导得到了一般三次代数方程的求根公式，结果证明与卡尔丹公式是一致的。
Based on the definition of sensitive actual stage a cubic equation was derived and solved for the liquid compositions on the sensitive actual stages for the rectifying and stripping sections.
从灵敏实际级的定义出发，导出一个立方型方程，解此方程得出精馏段和提馏段的灵敏实际级上的液相组成。
Axisymmetric elasticity problem of cubic quasicrystal is reduced to a solution of a partial differential equation with higher-order by introducing displacement function.
本文通过引入位移函数使得立方准晶的轴对称弹性问题化为求解一高阶偏微分方程。
Furthermore, a Cubic Curve-fitting equation deduces and set up. In the end, through a group of actual data, the effect of this new method is validated.
建立了三次拟合曲线方程，通过实际数据的检验，验证了该方法的拟合效果。
This new cubic type of status equation currently represents a relatively good mathematical model for calculating the phase equilibrium parameters of water and the properties of saturated humid air.
这个新的立方型状态方程是目前计算水的相平衡参数和饱和湿空气性质较好的数学模型。
NS equation was adopted as the model of tunnels ventilation, and this model was solved by Cubic Interpolated Pseudo-particle Method.
用NS方程作为隧道通风的数学模型，采用三次插值伪质点法求解ns方程。
Section II describes the numerical solution of first-order matrix differential non-linear equation using the cubic matrix spline function.
第二节介绍用三次矩阵样条函数方法逼近一阶矩阵非线性微分方程的数值解。
A nonlinear slowly varying amplitude equation, which incorporates cubic nonlinear term, external excitation and the influence of surface tension, was derived from potential flow equation.
通过求解势流方程，获得了一个包含三阶非线性项、外激励及表面张力影响的非线性振幅方程。
Based on the vector equation, a real time interpolation algorithm for the cubic parametric spline curve in CNC systems is proposed.
根据三次参数样条曲线的矢量表示方法，导出了一种CNC系统中样条曲线的实时插补算法。
Basic equation of photoelastic stress analysis by Chen (1962) is adopted; and a cubic spline function suitable for processing of photoelastic data is derived.
文中采用陈至达(1962年)的光测应力分析基本方程，并导出适合于光弹性数据处理的三次样条函数。
方程为一元三次方程。
The equations of motion of beam, which includes not only quadratic and cubic nonlinearities but also parametric and forced excitations are derived using Kane's equation.
该方程组不仅包含二次及三次非线性项，而且体现了参数激励与外激励的联合作用。
After partial differential equations was changed into cubic algebraic equation, accurate solution of the structure was able to be obtained.
将偏微分控制方程化为三次代数方程，获得结构内力的精确解。
Stresses in beam and critical load of column with cubic constitutive equation is solved. The stresses and stability behavior of columns is discussed.
本文分析求解了具有三阶本构关系材料梁的应力和柱的临界载荷，并对其应力特性和稳定特性作了探讨。
Section I describes the numerical solution of first order matrix linear differential equation using the cubic matrix spline function and quartic matrix spline function.
第一节介绍了三次矩阵样条函数方法和四次矩阵样条函数方法逼近一阶矩阵线性微分方程的数值解。
The precipitation process simulation of the medial density cubic alloy was conducted using the microscopic diffusion equation including the coherent strain energy.
固溶体共格析出过程微观组织演化进行了模拟，并就合金成分变化对析出动力学的影响进行了研究。
The precipitation process simulation of the medial density cubic alloy was conducted using the microscopic diffusion equation including the coherent strain energy.
固溶体共格析出过程微观组织演化进行了模拟，并就合金成分变化对析出动力学的影响进行了研究。
应用推荐