例句與造句

1. His research interests include supernovae and the extragalactic distance scale.
2. This confirmed Walter Baade's extragalactic distance scale.
3. In the 1950s, two substantial errors were discovered in Hubble's extragalactic distance scale : first in 1952, Walter Baade discovered there were two classes of Cepheid variable star.
4. The extragalactic distance scale is a series of techniques used today by astronomers to determine the distance of cosmological bodies beyond our own galaxy, which are not easily obtained with traditional methods.
5. "' The Araucaria Project "'- international science collaboration focused on improving calibration of the extragalactic distance scale based on observations of major distance indicatiors in several nearby galaxies.
6. It's difficult to find extragalactic distance scale in a sentence. 用extragalactic distance scale造句挺難的
7. The "'cosmic distance ladder "'( also known as the "'extragalactic distance scale "') is the succession of methods by which astronomers determine the distances to celestial objects.
8. Schommer also worked on clusters of galaxies and their use in establishing the extragalactic distance scale; dark matter in dwarf galaxies; and designed and built a Fabry P閞ot interferometer and oversaw its installation at the Cerro-Tololo Observatory.