“square degree”的概念、定义、翻译、参考文献-科学参考

单词	square degree
释义	square degree [`skwer di`grē] ^MATHEMATICS A unit of a solid angle equal to (π/180)² steradian, or approximately 3.04617 × 10^-4 steradian.
随便看	sigma function sigma hyperon sigma-minus hyperonic atom sigma phase sigma pile sigma ring sigmaspire sigma-T sigmatron sigmatropic shift sigmoid sigmoidal dune sigmoidal fold sigmoid colon sigmoid distortion sigmoiditis sigmoidoscope sign signage signal signal area signal bias signal carrier signal center signal channel

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。