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词汇 population II
释义

Definition of population II in English:

population II

noun
Astronomy
  • A population of old, red stars formed early in the history of their parent galaxy, the earliest of which are thought to be coeval with their galaxy.

Origin

1950s.

Definition of population II in US English:

population II

noun
Astronomy
  • A population of old, red stars formed early in the history of their parent galaxy, the earliest of which are thought to be coeval with their galaxy.

Origin

1950s.

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