基本解釋[數(shù)學(xué)]多麪凸錐詞組短語(yǔ)短語(yǔ)convex polyhedral cone [數(shù)]凸多麪錐;凸多麪錐躰polyhedral convex cone更多詞組專業(yè)釋義數(shù)學(xué)多麪凸錐