evanescent meaning in English
adj.
1.(印象等)渐渐消失的。
2.快消灭的；短暂的，瞬息的。
3.纤细的，轻盈的。
4.【植物；植物学】(叶脉)隐失的。
5.【数学】无限小的。
Examples
- All was unstable; quivering as leaves, evanescent as lightning .
一切都是不稳定的，都象树叶似地颤动翻转，象闪电似地倏忽明灭。 - The disturbances advances in the x-direction as a so-called surface or evanescent wave .
这个扰动作为一个所谓表面波或倏逝波沿着X方向行进。 - By epiphany he means "the most delicate and evanescent of such memorable focusing moments. '
他的“显现”指的是“那种难于忘怀的了，令人聚精会神的最微妙最短暂的时刻。” we have to distinguish between the propagating modes with real valued β, and the evanescent modes with imaginary β. 我们必须分别考虑具有实数的导模和具有虚数的消失模。 - The linear guide shown in fig. 3. 226 couples to the planar guide via the evanescent field which appears in the gap between the two guides .
图3226所示的条形波导通过出现在两波导间隙的消失场同平面波导耦合。