渐变

It takes mysterious and romantic fuchsine, gradual changing violet red, in all;it pleased both eye and mind.

标志采用神秘、浪漫品红+淡淡紫红趋向，使标志达到了享心境地。

The square regulation graded index fiber is considered to have fairly good dispersion property because the near axle meridian light in the fiber may focalize automatically.

本文首先推导出平方律光纤中,近子午光线轨迹方程。

The historical development of a language is hardly a sudden transformation of one language into another, but a gradual and constant process, often indiscernible to speakers of the same generation.

语言化是一个缓慢过程，其化是同代人所不易察觉。