基本解釋[數(shù)學(xué)]無(wú)窮三角級(jí)數(shù)詞組短語(yǔ)短語(yǔ)infinite branch trigonometrical series 無(wú)窮三角級(jí)數(shù)infinite trigonometrical series更多詞組專(zhuān)業(yè)釋義數(shù)學(xué)無(wú)窮三角級(jí)數(shù)