单词 | geocentric parallax |
释义 | geocentric parallax [¦jē·ō¦sen·trik `par·ǝ´laks] ASTRONOMY The difference in the apparent direction or position of a celestial body, measured in seconds of arc, as determined from the center of the earth and from a point on its surface; this varies with the body's altitude and distance from the earth. Also known as diurnal parallax. |
随便看 |
|
科学参考收录了103327条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。