1. a conical shadow excluding all light from a given source specifically the conical part of the shadow of a celestial body excluding all light from the primary source
2. the central dark part of a sunspot
3. a shaded area
umbral 片语
片语
dull钝的;迟钝的;无趣的;呆滞的;阴暗的
umbral operator哑算子
Umbral Rot暗影腐烂
shady(Shady)人名;(阿拉伯)沙迪
Umbral Bloom一种花
umbral index哑指标
umbral oscillations本影振蕩
Umbral Shiv阴影剃刀
umbral grotto阴影石穴
Umbral Visor虚影覆面
Umbral Disk阴影圆盘
umbral 例句
英汉例句
Usually annular eclipses are referred to solar eclipses, as Earth「s umbral shadow is always large enough for the whole Moon to hide inside during a lunar eclipse.
在日月食中,因为地球的影子比月球大得多,所以只会有日环食而没有月环食。
Pictured above, the face of a full moon is partly blocked by Earth」s clouds, and partly darkened on the upper right by Earth「s umbral shadow.
上图中,月亮被云遮去了一小部分,但是右上角的暗影并不是云造成的,那是地球的影子。
During totality, the Moon tracked through the northern part of the Earth」s dark umbral shadow, so the southern half appeared considerably darker than the northern part.