... second order difference 二阶差分 second order differential equation 二阶微分方程 second order effect 二次项效应 ...
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second-order differential equation [数] 二阶微分方程 ; 二阶微分方程式 ; 微分方程 ; 二次微分方程
simple second order differential equation 简单二阶微分方程
the second order differential equation 二阶微分方程
linear second order differential equation 二阶线性方程
nonlinear second order differential equation 二阶非线性微分方程
incomplete second order differential equation 非完全二阶抽象微分方程
For the latter, since we transform the problem to seek to solve the second order differential equation into that of twice integrations, the calculating process is also simple.
后者由于把一个二阶微分方程的求解转化成为两次积分问题，也使计算过程简化。
Based on the theory of differential geometry and geodesy, the second order differential equation and the first differential relationship are derived on the regional earth ellipsoid in this paper.
通过在积分换元、微分方程求解、多（一）元复合函数求全微分、偏导数及高阶偏导数中的应用举例，论述了一阶微分的形式不变性在微积分学中的作用不应被忽略。
The driveline for a tractor vehicle is simplified as a 2-DOFs(degree of freedom)torsional vibration system, and is described as a second-order differential equation.
将牵引车的传动系简化为一个2自由度的扭转振动系统，并以二阶微分方程描述。
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