运行的程序将对清单1 中的表达式进行二次求值，其中 $exp变量分别被设置为和 。
The running program will evaluate the expression in Listing 1 twice, with the $exp variable set to and .
在互易原理的基础上，得到了计入相邻目标二次散射的散射场的积分表达式。
The integral expressions for scattered fields including the second-order scattering terms are given based on the reciprocity theorem.
本文利用统计学中线性模型的理论给出一类等式约束二次规划问题解的表达式。
In this paper, using the theories of linear model in the statistics, we can give the general expression on solution of a class of equality constrained quadratic programs problem.
推导出高能原电子斜入射时的金属的有效真二次电子发射系数的表达式，它与入射角的余弦近似成反比。
This paper derived the formulation for the real efficient emission coefficient of secondary electron under the condition that high energy primary electron incident on metal obliquely.
由此，通过在一个临近SVSR边界的系统运行点处的运算，可以直接得到SVSR边界的近似二次解析表达式。
Thus the approximate quadratic expression of SVSR boundary can be obtained by the calculation on a given operating point close to the boundary.
并且利用其结果得到了几类二元二次不定方程的整数解表达式。
And based on these results the expressions for some binary indefinite quadratic equations integer solutions are obtained.
在鞍结分岔的参数范围内证明了具有鞍结分岔的二次系统都存在同宿轨道，得到了同宿轨道的解析表达式及其幅值与分岔参数的关系。
It was proved that there exist homoclinic trajectories of a quadratic system in the range of the parameter of the saddle node bifurcation.
在普通十字轴万向节二次力矩的基础上，推导出环叉式万向节二次力短的瞬时表达式。
On the base of the second couple of the common cross U-jioint. a transient value of the second couple in the ring-fork U-joint is obtained.
讨论了二次电位和二次电场出现异常谱的原因，并分析了极化球体上U_2、E_2的表达式，提出了存在的问题及其严密、精确解的表达式。
The origin of IP anomaly spectrum is discussed. In addition, after analysis of the expressions of U_2 and E_2 for a polarizable spherical body, the authors put forward a strict and exact solution.
讨论了二次电位和二次电场出现异常谱的原因，并分析了极化球体上U_2、E_2的表达式，提出了存在的问题及其严密、精确解的表达式。
The origin of IP anomaly spectrum is discussed. In addition, after analysis of the expressions of U_2 and E_2 for a polarizable spherical body, the authors put forward a strict and exact solution.
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