1) expansion equation of partial waves
分波展开式
2) partial-wave expansion
分波展开
1.
We investigate the differential cross sections of the elastic electron scattering from ~(12,16)O and ~(28,32)S by the relativistic partial-wave expansion method using the static charge density distribution from the self-consistent relativistic mean field model and also calculate the charge form factor of ~(12,16)O and ~(28,32)S.
用相对论分波展开法研究了电子与12,16O和28,32S弹性散射的微分截面以及12,16O和28,32S的电荷形状因子,其中核的电荷密度分布利用自洽相对论平均场模型来计算。
3) fraction expansion
分式展开
1.
Based on Taylor series expansion of time-distance equation of reflection wave in horizontal layered media, fraction expansion time-distance equation was derived.
从水平层状各向同性介质中反射波时距方程的泰勒级数展开式出发 ,推导出了时距方程的分式展开表达式 ,并给出了相应的系数表达式。
4) expansion equation of integrals
积分展开式
5) continued fraction expansion
连分式展开
1.
Furthermore,an algorithm of the finite continued fraction expansion is used to sum up the integrals on each subinterval to greatly accelerate the convergence velocity of the numerical integration along the descent path.
利用高阶窗函数结合连分式展开等技术研究并建立一种水平层状各向异性介质中电磁场并矢Green函数的快速有效算法。
补充资料：分步展开
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性质：又称阶段展开。用两种或两种以上不同组成的溶剂系统沿薄层板同一方向先后各自移动一定的距离的展开过程。第二展开溶剂的极性须比第一展开溶剂的极性强，展距大。
CAS号：
性质：又称阶段展开。用两种或两种以上不同组成的溶剂系统沿薄层板同一方向先后各自移动一定的距离的展开过程。第二展开溶剂的极性须比第一展开溶剂的极性强，展距大。
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