短語詞組短語right -angled spher-ical triangle 球麪直角三角形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 返回 right-angled triangle