《parsec.doc》查看内容详情
亲,网页上所展示的文章内容和下载文档内容是一致的,下载前请点击“查看内容详情”确认是否您所要下载的内容。
n.秒差距(1秒=3。26光年); 英英释义: parsec[ 'pɑ:sek ]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同义词:secpar