parsec
| parallax second
| parsec abbr. | |
| gen. | 秒差距 |
| astr. | 秒差距; 秒差距 |
| avia. | 秒差距 |
| earth.sc. | 秒差距 |
| meas.inst. од. | 秒差距 |
| parallax second abbr. | |
| astr. | 秒差距 |
| earth.sc. | 秒差距 |
| el. | 秒差距 |
| space | 秒差距 |
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| 秒差距表示天体距离的单位,视差为1秒的距离，相当于3.259光年 | |||
| 秒差距表示天体间距离的单位，即视差为一秒的距离，相当于3.259光年; 秒差距表示天体距离的单位，等于30.84 x1012 公里或3.26光年 | |||
| 秒差距 | |||
| 秒差距天文距离单位，相当于 3.258 光年 | |||
| ★ 秒差距天体距离的非法定计量单位，1 pc=3.085 677 56*10¹⁶m | |||
| 秒差距 (见 parsec) | |||
| English thesaurus | |||
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| pc | |||
| parallax second | |||
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| parser and extensible compiler | |||
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parsec : 9 phrases in 5 subjects |
| Aviation | 2 |
| Earth sciences | 1 |
| Geophysics | 1 |
| Space | 3 |
| Technology | 2 |