parsec
英 ['pɑːsek]
美['pɑr,sɛk]
- n. 秒差距（表示天体间距离的单位）
英英释意
- 1. a unit of astronomical length based on the distance from Earth at which stellar parallax is 1 second of arc; equivalent to 3.262 light years
英文词源
- parsec (n.)
- interstellar distance measure, 1913, from first elements of parallax second. It is the distance at which an object has parallax (viewed from Earth) of one second of arc, or about 3.26 light-years.
实用场景例句
- It uses Parsec as a parallel discrete - event simulation language.
- 它使用并行离散事件仿真语言Parsec作为 自己的编程语言.
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