1839, "of the Milky Way, of the bright band of stars around the night sky," from Late Latin galacticus, from galaxias (see galaxy). In modern scientific sense "pertaining to (our) galaxy," from 1849. From 1844 as "of or pertaining to milk."
实用例句
1. Galactic surveys show that distant galaxies are not as evenly distributed in space as theory predicts.
对银河系的研究表明，遥远星系在太空中的分布并不像理论所预言的那样均匀。
来自柯林斯例句
2. Galactic nebulas are masses of diffuse material within our galaxy.
银河星云是我们星系中的一团团弥散物.
来自辞典例句
3. Astronomers usually assume that interstellar dust is closely confined to the galactic plane.
天文学家通常认为,恒星际星尘都是紧靠着银河平面的.
来自辞典例句
4. At the current epoch in galactic history, star formation appears to take place in dark - cloud complexes.
在星系发展的现阶段, 恒星的形成看来是在暗云复合体内进行的.
来自辞典例句
5. The tidal forces of the galactic core are still too strong.