“sphere”的概念、定义、翻译、参考文献-科学参考

单词	sphere
释义	sphere [sfir] ^MATHEMATICS 1. The set of all points in a euclidean space which are a fixed common distance from some given point; in euclidean three-dimensional space the Riemann sphere consists of all points (x,y,z ) which satisfy the equation x²+y²+z²=1. 2. The set of points in a metric space whose distance from a fixed point is constant.
随便看	trapezoid trapezoidal excavator trapezoidal generator trapezoidal integration trapezoidal pulse trapezoidal rule trapezoidal wave trap mine trapped-air process trapped fuel trapped plasma avalanche transit time diode trapped radiation trappide trapping prick punch priest prill primaquine primary primary air primary alcohol primary amine primary arc primary area primary atypical pneumonia

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。