短語(yǔ)詞組短語(yǔ)right -angled triangle plate 直角三角形板isosceles right -angled triangle capillary 等腰直角三角形毛細(xì)琯the isosceles right -angled triangle plate 等腰直角三角形板altitude of a right -angled triangle 直角三角形的高right angled triangle WESTBANK 直角三角 返回 right angled triangle