单词 | secpar |
释义 | secpar/ˈsekˌpɑː/n.【天文】=parsec详细释义源自:《新世纪英汉大词典》Collins外研社 n. /ˈsekˌpɑː/= parsec【天文学】英英释义n.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 |
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