Read Edit View history 等比级数 děngbǐjíshù geometric series Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 等比级数/等比級數 · děngbǐjíshù · geometric series 2026/03/04 等比级数 / 等比級數 děngbǐjíshù geometric series geometric series (such as 1+2+4+8+...) 这个等比级数的公比是二。 created sense Mar 4, 2026, 02:25 AM