1) high order approximation
高级近似
1.
By the method of expanding wave function and energy level one by one,we compute the high order approximation formulae in non-degenerate stationary perturbation theory,where the wave function is computed to the second order and the energy leve to the third order.
采用逐级近似展开的方法,计算了非简并定态微扰理论高级近似公式,波函数修正计算至二级,能量修正计算至三级。
2) senior approximate solution
高级近似解
3) the higher order adiabatic approximation
高级绝热近似
1.
By using the new concept of the higher order adiabatic approximation,we offer a approximate method to salve the nonlinear differential eguation(1) and calcalate the lagging respands time when the conditions (21)have been fulfilled.
在引入高级绝热近似的新概念后，当条件（３）式得到满足时，可近似求解非线性微分方程组（１）式，并求出子系间作用与反作用的延迟响应时间。
4) third order approximation
三级近似
1.
To calculate the beam transport in the ion optical systems accurately, a beam dynamics computer program of the third order approximation has been developed.
粒子轨迹的计算可精确到三级近似。
2.
To understand the nonlinear optical properties of solenoidal lenses,Lie algebraic methods are used in the analysis of particle trajectories in this kind of lenses,and the results of third order approximation are obtained.
用李代数方法分析了带电粒子在螺线管透镜中的运动 ,得到六维相空间中粒子轨迹的三级近似解 ,并包含了运动的相对论效应 。
3.
The solutions of particle trajectories of third order approximation are obtained.
用Lie代数方法分析了带电粒子在四极透镜中的运动 ,得到六维相空间中粒子轨迹的三级近似解 ,并包含了运动的相对论效应。
5) strong proximate order
强近似级
1.
The essay defined the proximate order and strong proximate order,studied the slowly increasing function and strictly increasing function,deduced the properties of the proximate order and strong proximate order and also studied the existance conditions of the strong proximate order.
在一般意义函数级的基础上定义近似级和强近似级,研究了缓慢增长函数、严格增长函数,推导了近似级和强近似级的相关性质,并研究了一定条件下强近似级存在的条件。
6) More exact
二级近似
1.
The more exact object image refraction image on axial spherical surface is presented, thereafter the lateral magnification and aberration are discussed.
给出了二级近似时近轴球面折射成象的物理规律 ,进而讨论了横向放大率与象
补充资料：高级
①（阶段、级别等）达到一定高度的：～神经中枢丨 ～干部丨 ～人民法院。②（质量、水平等）超过一般的：～商品丨 ～毛料。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条