arcsecond
enUKarc·sec·ond
A5431520 (ärk′sĕk′ənd)| Noun | 1. | arcsecond - a 60th part of a minute of arc; "the treasure is 2 minutes and 45 seconds south of here" |
| 单词 | arcsecond | |||
| 释义 | arcsecondenUKarc·sec·ondA5431520 (ärk′sĕk′ənd)
arcsecondenUK
Synonyms for arcsecond
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