中英词典查询

umbra [ˈʌmbrə]

n. 本影，暗影，蚀时的地球;
复数：: umbras umbrae

例句:

  • Modern experts, such as the redoubtable Carl Sagan, may provide an umbra of authority.
    来自SA
  • 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.
  • 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.