单词	synodic month
释义
随便看	principal asymptotic fraction principal axes problem principal axis of a ellipsoid principal axis of an ellipse principal axis of a quadric curve principal axis of elliptic paraboloid principal axis of hyperbolic paraboloid principal axis of hyperboloid of one sheet principal axis of hyperboloid of two sheets principal axis of inertia principal axis problem of a quadratic form principal bundle principal character principal character principal character of group principal class principal component analysis principal component analysis principal component classification method principal component for population principal component for sample principal components estimate principal congruence principal congruence relation principal congruence subgroup

数学辞典收录了63749条数学词条，基本涵盖了常用数学知识及数学英语单词词组的翻译及用法，是数学学习的有利工具。