片语

approximate E solution近似解

approximate invarient solution近似不变解

approximate trajectory solution近似弹道解

approximate explicit solution显式近似解

approximate fundamental solution近似基本解

approximate optimum solution近似最优解

an approximate analytical solution逼近解析解

approximate optimal solution最优近似解

英汉例句

• using the pulse in the shape of sech 2, the approximate solution has been obtained and compared with the numerical simulation of evolution equation.

  在此基础上给出了双曲正割型输入脉沖在介质中的传输特性，得到了近似解析解，并与直接演化高阶非线性薛定谔方程作了比较。

• by means of the power series expansion of the solution, this method can construct an approximate solution to solve the given integral equation.

  通过该溶液的幂级数展开的装置，这种方法可以构造一个近似的解决方案来解决给定的积分方程。

• an approximate solution dealing with the singularity is proposed.

  提出了一种处理奇点问题的近似解法。

• this paper presents an approximate solution of instantaneous temperature distribution of the headstock.

  本文就机床主轴箱的瞬态温度分布提供一个近似解。

• using wave guide theory, we deduce scalar approximate solution about transmissive light through a fiber weak-guide and give the expressions of field in each component.

  根据光波导理论，推算出弱导条件下光沿光纤传输场的标量近似解，给出场的各分量表达式，以便分析讨论。

• in this paper the application of penalty shifting method to the approximate solution of the optimal initial control problems for the parabolic system on doubly connected region is researched.

  研究了惩罚移位法应用于一类种群扩散系统最优边界控制的计算，构造了其逼近程序，并证明了这种方法的收敛性。

• an excellent approximate solution of the motion of a nonlinear simple pendulum is obtained by the method of green's function.

  应用格林函数方法，给出了非线性单摆运动的较好近似解。

• by means of the method of the multiple scales the first approximate solution of the primary resonance of the system is acquired, and numerical calculation is carried out.

  应用多尺度法求得了系统主共振情况的一次近似解，并进行了数值计算。

• the approximate solution is proved effective by comparing with numerical result.

  通过与数值解结果的比较，说明近似解是有效的。

• the nonlinear equation of heat conduction is transformed into a laplace′s equation by applying the kirchhoff transformation, and an analytic approximate solution of the equation is derived.

  当介质的导热系数是温度的函数时，热传导方程是非线性偏微分方程，作者采用基尔霍夫变换把它变成拉普拉斯方程，于是可以找到原问题的近似解析解。

• in this paper, the exact solution and approximate solution of the boundary control problem for a class of the heat-conduction equation are given.

  给出了热传导方程边界控制问题的精确解和近似解，证明了近似解对精确解的收敛性。

• then using the approximate solution as initial value of iteration, the nonlinear equations for the closest point of collapse are solved directly by newton-raphson method.

  然后采用牛顿-拉夫逊法直接对最近电压崩溃临界点模型所构成的非线性方程组进行迭代求解。

• the approximate solution of infinitely long plane strip is obtained by the method of energy.

  用能量法求得了无限长条板的近似解。

• according to the discussion of approximate computation model about taylor series method and newton tangent method, the approximate solution of newton tangent method is improved .

  采用牛顿切线法求解公式既简单又可以利用计算机进行程序计算，提高了全悬式缆索起重机承载索张力计算的精度和速度。

• since the exact solution of a boundary integral equation from bem is unknown, the actual error in the approximate solution cannot be obtained.

  从边界元法导出的边界积分方积的精确解通常是求不出的，于是其近似解的实际误差是无法得到的。

• it is proved that the converging wave in an approximate solution in geometric optics is not the stable mode from the cavity.

  证明了几何光学近似解中的会聚波，不是腔的稳定模。

• the nonlinear algebraic equations for the second order approximate solution were solved by using symbolic computation software.

  由二阶谐波平衡法得到的非线性代数方程组很容易用符号运算软件求出。

• stability of nonlinear dynamical system of relative rotation and approximate solution under forced excitation;

  研究一类带有匹配不确定性非线性动力系统的鲁棒稳定问题。

• in order to improve the accuracy of the measurement of superposition hole, an approximate solution based on image subtraction technique to identify the superposition holes was put forward.

  为了提高纸靶重孔的测量準确性，提出一种基于图像减影技术的重孔识别方法。

• in chapter 4, homotopy perturbation method is successfully extended to solve time-fractional diffusion equation with a moving boundary condition and an approximate solution is obtained.

  在第4章，同伦摄动的方法被成功应用到求解带有一个可动边条件的时间分数阶扩散方程并且得到了一个近似解。

• a 2d fvm and riemann approximate solution model for water quality of the wulihu lake are developed, and the parameters of the model are calibrated.

  建立了五里湖二维水流水质耦合模型，并对模型参数进行率定。

• the iteration method is applied to seek the approximate solution of the hybrid system.

  用逐次近似法寻求混合系统的近似解。

• calculation of concentration distribution of algae in taihu lake with riemann approximate solution model;

  模型在有限体积法框架下应用黎曼近似解求得耦合方程的数值解。

• the following result is proved. the approximate solution by this method approaches the true solution if the number of the steps approaches the infinity.

  并证明了如下结论：用这个方法得出的近似解，当阶梯数趋于无穷时趋于真解。

• the method is based on the approximate solution of the equations of motion by using of the simplified elastic model and aerodynamic forces expressions.

  该方法采用简化的弹性模型和气动力表达式，建立运动方程，并对该方程近似求解，得到预示弹性叶片颤振和发散边界的準则。