1 . 赤道

...现古珊瑚礁(coral reef)和热带植物(tropical plants)化石(fossil);在赤道(equator)地区发现有古代冰层。魏格纳还认为，大陆漂移对现代由海洋分隔的各大陆上动物和植物的显著相似性提供了最好.

1 . 方程与

they ( non-linear equations ) are very different from linear equations , which predict that a small applied force leads to a small effect and that a large applied force leads to a large effect .非线性方程与线性方程极为不同，因为线性方程能预示：作用力小，产生的效果就小；作用力大，产生的效果就大。

1 . 方程是

stochastic differential equations ( SDEs ) represent physical phenomena dominated by stochastic processes . as for deterministic equations ( ODEs ) , various numerical schemes are proposed for SDEs .随机微分方程是用来描述在随机过程驱动下的物理现象。

1 . 方程求解

the parabolic equation ( PE ) is used to compute the bistatic RCS of-dimensional convex objects and simulate the scattering of multi-objects .文章应用抛物线方程求解二维凸面物体的双站雷达散射截面，模拟多体散射问题。

2 . 方程算法

the theory of parabolic equation ( PE ) was presented , and was applied to the scattering analysis of two dimensional perfectly electric conducting objects .对抛物线方程算法的基本原理进行了详细论述，并将其运用到二维导体目标的电磁散射特性分析中。