单词 | sextant |
释义 | sextant [`sek·stǝnt] MATHEMATICS A unit of plane angle, equal to 60° or π/3 radians. NAVIGATION An optical instrument; a double reflecting instrument used in navigation for measuring angles, primarily altitudes of celestial bodies. |
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。