基本解釋[數(shù)學(xué)]比例線段詞組短語(yǔ)短語(yǔ)constructing by proportional segments 比例線段法作圖mean proportional of line segments 線段的比例中項(xiàng)proportional segments更多詞組專業(yè)釋義數(shù)學(xué)比例線段