大家都搜：
[数]二次项
1、quadratic equation───[数]二次方程式
2、solving quadratic equations───解二次方程
3、quadratic effect───二次效应
4、term───n.(Term)人名；(泰)丁；n.术语；学期；期限；条款；(代数式等的)项；vt.把…叫做
5、quadratic calculator───二次计算器
6、factored form quadratic───因子形式二次型
7、quadratic───adj.[数]二次的；n.二次方程式
8、quadratic element───[力]二次元
9、quadratic solver───二次解算器
1、At the same time, the quadratic term of displacement should also be included in the expression of strain.───同时应变表达式也应包括位移的二次项，这就需要采用几何非线性来研究。
2、the other hand, it also derives the covariance propagation formula of non-linear function containing quadratic term in matrix form using the matrix theory etc.───另一方面又利用矩阵理论等推导出含有二次项的非线性函数的协方差传播公式的矩阵形式。
3、paper expands the non-linear observation function in Taylor's series, takes to the quadratic term and obtains the form of the linear-quadratic term.───本文将非线性观测值函数泰勒级数展开，并取至二次项，得到线性一二次项形式。
4、Bifurcation Analysis of Non-linear Dynamic System with a Quadratic Term───含平方项非线性动力XiTong的分岔研究
5、Firstly part of quadratic term of Taylor series is chosen; a low-dimension surface is used to approximate limit state surface; and the modified reliability formula is derived.───首次选取泰勒级数的部分二次项，用一个距原点最近点处拟合的超低维曲面近似极限状态面。