秒差距 [－－－]

Jyutping miu5 caa1 keoi5
Pinyin miǎo chā jù

Definitions (CC-CEDICT)
  1. parsec (astronomy)
Definitions (粵典–words.hk)
  1. 名詞
    天文​學單位​，​約​等​於​3.26​光年
    parsec
Definitions (Wiktionary)
  1. noun
    parsec