second-order equation

It's a second-order equation in x, and is a parabola and a parabola has this shape.

这是一个x的二次方程，也是一个抛物线方程式，抛物线都长这样。

An equation known as the Schrodinger equation describes how wave functions change in time, a role similar to Newton's second law in classical mechanics.

已知的薛定谔方程描述了波函数怎样及时改变，类似经典力学里的牛顿第二定律的角色。

The model of a kind of wave energy device moored on seabed is simplified into a spring-mass-damping system, and then its motion equation is built according to Newton's second law.

将造波水槽内二维浮体牵引弹簧回复液压缸的受力系统简化为弹簧质量阻尼器系统，建立数学模型，并根据牛顿第二定律得到运动方程式。

Theorem of kinetic energy and deduction method of the second Lagrange equation

动能定理与第二类拉格朗日方程的推导方法

Second, the camber equation is developed for the crss points.

从曲面方程和直线方程的联立解求出交点.

Solutions of the second mixed boundary value problems for the time fractional telegraph equation

时间分数阶电报方程第2类混合边值问题的解

The dynamical equation of the system was established using Lagrangian equation and Newton's second law.

通过系统运动的拉格朗日方程和牛顿第二定律，建立了机械式离心调速器系统的动力学方程。

On the basis of Newton's second Law, a motion differential equation has been put forward, by which a formula to calculating instantaneous velocity has been obtained.

依据牛顿第二定律列出运动微分方程式，解方程式并求得计算瞬时速度的公式。

First, the dynamics coupled equation containing non-classical damping structure is seperated by the method of mode strain energy in the complex mode space. Second, the equation in real mode space is solved.

首先利用模态应变能法对包含非经典阻尼结构的动力方程在复模态空间内进行解耦，然后在实模态空间内对解耦后的运动方程进行求解。

According to the equation of chromatographic dynamics, we can get the second central moment and the third central moment of elution curve of HPLC under linear nonideal conditions.

从液相色谱过程动力学方程出发，运用电子计算机证明了在线性非理想条件下高效液相色谱体系中不同保留值组分在柱末端峰形的分布基本一致的结论。

According to the Newton's second law, the droplet trajectory equation is established, the flow field calculated by N-S equation is regarded as the base of droplet trajectory equation solved.

根据牛顿第二定理，建立了水滴轨迹方程，将解N-S方程得到的流场解作为水滴轨迹方程的定解条件。