In the "Acta" of 1691 James Bernoulli derived the equation for the tractrix.

在1691《报》中詹姆士?伯努利推导出跟踪曲线方程。

The solution can be expressed by a mathematical equation.

答案可用一个数方程式来表示。

Observational studyaims at the approach to a dynamic system whose equation is undeterminable.

该方程组解在有限时段上采样值与给定序列重合。

The kinetics of deep oxidation of butene-2 and butadiene obeyed the empirical rate equation.

丁烯-2及丁二烯深度氧化动力服从经验速度方程。

Function Grapher 2D Edition can be used to make 2D equation graphs.

功能grapher二维版可以用来制二维方程图。

Formula one cars are the most powerful.

一级方程式赛车马力最大。

The general event horizon formula of black hole is given from null hypersurface equation.

从零曲面方程出发,导出了黑洞视界面普遍公式.

A four-joint flexible underwater pisciform propulsion system is developed and the control flow chart is presented.

设计了四关柔性水下仿鱼形推进器，给出了控制流程图，建立了运动方程。

It leads to one simple equation, which, in the isotropic case, is the bipotential equation .

因为它可以推出一个简单方程，在各向同性情况下，这个简单方程是一个双位势方程。

Compared with the results reported in literatures, the model and aquation are found to have practicability.

与现有文献结果进行比较，证明建立模型和方程更具实用性。

The gust-cascade interaction noise was numerically simulated using computational aeroacoustics by solving the two-dimensional linearized Euler equations.

采用计算气动声方法求解二维线化欧拉方程对阵风与叶栅干涉噪声进行了数值模拟。

An algorithm was constructed to solve the least squares bisymmetric solution of a class of matrix equation.

摘了一种迭代法求一类矩阵方程最小二乘双对称解。

The parameters of JWL equation of state for detonation products of ROTL 905 aluminized explosive were calculated.

利用圆筒试验数据计算了含铝炸药JWL状态方程参数。

Based on the two-dimension adlittoral non-invariablenes flow control equation of lakes,a hydrodynamic model of lakes was built up.

从二维浅水非恒定流控制方程出发,建立了一个二维湖泊流体动力模型。

Starting with Lagrange equations of the first kind, pure differential equations of multibody systems with rheonomic constraints are established.

根据变换方程与约束方程显含时间等价性，提出了定常约束与定常系统判据等同表述。

This paper presents the research scopes, developing history, basic equations, theoretical studies and the applications of magnetoelasticity and thermal-magnetoelasticity.

介绍了磁弹性、热磁弹性基本内容，发展简史，基本方程，理论研究，实际应用研究及其未来应用前景。

Analytic resolution of rate equation for the nonradiative depopulation not equal to zero is derived for the first times.

首次推导出了非辐射人口不为零时速率方程解析解。

The free energy functional for the time dependent Ginzburg-Landau equation were got by means of the Flory-Huggins free energy.

首先我们从Flory-Huggins自由能出发，提出了适合于时间依赖Ginzburg-Landau方程（TDGL）自由能泛函。

In order to define this irrotationality condition mathematically, let us consider the equation of motion in terms of velocities.

为了从数上确定此无旋性条件，我们考虑以速度为未知函数运动方程。

Using distributed source model, this imaging problem can be formulated as an ill-conditioned and highly underdetermined linear inverse problem.

采用非参数分布源模型,磁源成象问题即为求解一病态欠定线性方程组。