udf 423造句

例句与造句

1. "' UDF 423 "'is the Hubble Ultra Deep Field ( UDF ) identifier for a distant spiral galaxy.
2. With an apparent magnitude of 20, UDF 423 is one of the brightest galaxies in the HUDF and also has one of the largest apparent sizes in the HUDF.
3. It's difficult to find udf 423 in a sentence. 用udf 423造句挺难的