Chinese words ending with 級數 (jíshù) 級數 dictionary entry 6 words. 冪(mì)級(jí)數(shù) power series 幾(jǐ)何(hé)級(jí)數(shù) geometric series 等(děng)差(chā)級(jí)數(shù) arithmetic series 算(suàn)術(shù)級(jí)數(shù) arithmetic series 等(děng)比(bǐ)級(jí)數(shù) geometric series 收(shōu)斂(liǎn)級(jí)數(shù) convergent series