umbra的中文翻译是什么意思
umbra
US/ˈʌmbrə/
UK/ˈʌmbrə/
n. 本影，暗影，蚀时的地球
umbra的英文释义
Noun
1. a region of complete shadow resulting from total obstruction of light
umbra的场景例句
This is a lighter area between the umbra and the edge of a shadow.
这是本影和阴影边缘之间较亮的区域.
Only moon umbra totally puts on earth, the shadow area can watch the eclipse.
唯有在月球的本影投影在地球表面时, 在该区域的人才能够观测到日食.
This includes the continuous survey of umbra and penumbra of the sunspot.
这包括对太阳黑子本影和半影持续的观测.