umbra
pronunciation
UK [ˈʌmbrə]
US [ˈʌmbrə]
-
- n.
- 本影，暗影，蚀时的地球
Word Origin
umbra （日食或月食期间地球或月球的）本影
来自拉丁语umbra,阴影，影子，词源同umbrage, umbrella,用来指日食或月食期间地球或月球的本影。
Example
- 1. Umbra rain glazed pewter waste can .
- 本影有雨釉面白蜡废物罐。
- 2. 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。
- 3. During an average total lunar eclipse , the moon is within the earth 's umbra for about an hour . This is called totality .
- 月全食发生时，月亮在地球的本影中大约要持续1个小时，这就是所谓的“全食”.
- 4. Occurs when the moon is completely within the umbra shadow and takes on a reddish appearance .
- 发生，当月亮完全地在本影阴影之内并且承担一次带红色出现。
- 5. When the moon enters the umbra shadow , its bright side diminishes little by little .
- 当月亮进入本影阴影时，它的光明面逐渐减少。
more: >如何使用 "umbra" 造句