| 复数 | parsecs |
one parsec
一个秒差距
parsec distance
秒差距距离
parsec unit
秒差距单位
parsec scale
秒差距尺度
parsec away
远离秒差距
parsec measurement
秒差距测量
parsec conversion
秒差距转换
parsec limit
秒差距限制
parsec galaxy
秒差距银河
parsec star
秒差距恒星
the nearest star is about four light-years away, which is approximately 1.3 parsecs.
最近的恒星距离约四光年，约合1.3秒差距。
in astronomy, a parsec is a unit of distance used to measure astronomical objects.
在天文学中，秒差距是用于测量天体的距离单位。
the milky way galaxy is about 100,000 parsecs in diameter.
银河系的直径约为100,000秒差距。
light from the andromeda galaxy takes about 2.5 million years to reach us, which is roughly 780 kiloparsecs.
来自仙女座星系的光线大约需要250万年才能到达我们，这大约是780千秒差距。
scientists use parsecs to express distances between galaxies.
科学家使用秒差距来表示星系之间的距离。
the concept of a parsec was introduced in the early 20th century.
秒差距的概念是在20世纪初提出的。
one parsec is equivalent to about 3.26 light-years.
一个秒差距大约等于3.26光年。
astrophysicists often convert light-years into parsecs for clarity in their calculations.
天体物理学家常常将光年转换为秒差距，以便在计算中更加清晰。
the distance to the nearest galaxy, the canis major dwarf galaxy, is about 0.25 parsecs.
离我们最近的星系，犬座矮星系，距离约为0.25秒差距。
measuring distances in parsecs helps astronomers understand the scale of the universe.
用秒差距测量距离帮助天文学家理解宇宙的规模。
one parsec
一个秒差距
parsec distance
秒差距距离
parsec unit
秒差距单位
parsec scale
秒差距尺度
parsec away
远离秒差距
parsec measurement
秒差距测量
parsec conversion
秒差距转换
parsec limit
秒差距限制
parsec galaxy
秒差距银河
parsec star
秒差距恒星
the nearest star is about four light-years away, which is approximately 1.3 parsecs.
最近的恒星距离约四光年，约合1.3秒差距。
in astronomy, a parsec is a unit of distance used to measure astronomical objects.
在天文学中，秒差距是用于测量天体的距离单位。
the milky way galaxy is about 100,000 parsecs in diameter.
银河系的直径约为100,000秒差距。
light from the andromeda galaxy takes about 2.5 million years to reach us, which is roughly 780 kiloparsecs.
来自仙女座星系的光线大约需要250万年才能到达我们，这大约是780千秒差距。
scientists use parsecs to express distances between galaxies.
科学家使用秒差距来表示星系之间的距离。
the concept of a parsec was introduced in the early 20th century.
秒差距的概念是在20世纪初提出的。
one parsec is equivalent to about 3.26 light-years.
一个秒差距大约等于3.26光年。
astrophysicists often convert light-years into parsecs for clarity in their calculations.
天体物理学家常常将光年转换为秒差距，以便在计算中更加清晰。
the distance to the nearest galaxy, the canis major dwarf galaxy, is about 0.25 parsecs.
离我们最近的星系，犬座矮星系，距离约为0.25秒差距。
measuring distances in parsecs helps astronomers understand the scale of the universe.
用秒差距测量距离帮助天文学家理解宇宙的规模。
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