基本解釋[數(shù)學(xué)]積累點(diǎn)原理聚點(diǎn)原理詞組短語短語principle of accumulation point 聚點(diǎn)principle of point of accumulation更多詞組專業(yè)釋義數(shù)學(xué)積累點(diǎn)原理聚點(diǎn)原理