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单词 space velocity
释义

Definition of space velocity in English:

space velocity

noun
Astronomy

  • The velocity in space relative to the sun of a star or other object outside the solar system, equal to the vector sum of the proper motion of the object and its radial velocity.

Origin

Early 20th century; earliest use found in Science.

Definition of space velocity in US English:

space velocity

noun
Astronomy

  • The velocity in space relative to the sun of a star or other object outside the solar system, equal to the vector sum of the proper motion of the object and its radial velocity.

Origin

Early 20th century; earliest use found in Science.
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更新时间：2025/7/6 1:37:40