“steregon”的英英意思

单词 steregon 释义 steregon Solid Geom.|strign|[irreg. f. Gr. - solid + angle.](See quot. 1881.)1881Halsted Mensuration 78 A steregon, the natural unit of solid angle, is the whole amount of solid angle about a point in space.1883W. Thomson in Encycl. B...