umbra是什么意思
2024-02-17 01:09:16
umbra
n. 影；本影；蚀时的地球
形容词：umbral 名词复数：umbras
近义词：shade，
英英释义
Noun
- a region of complete shadow resulting from total obstruction of light
例句
用作名词(n.)
- 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。
- It is the custom that aged or infirm Striders make a final journey into the Umbra, never to return.年老或者衰弱的漫游者会根据传统最后一次出发去影界，一去不归。
- 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。
- Shaped like a cone extending into space, the umbra has a circular cross section that can be most easily seen during a lunar eclipse.本影就像一个圆锥一样延伸在空间中，当月食发生时，它很容易被看到。