filar evolute线渐屈线
Evolute core渐开线铁芯;渐开线铁心
intermediate evolute中间渐屈线
Evolute evolute渐屈线
evolute connection渐开线引线
plane evolute[数] 平面渐屈线
spherical evolute球面渐屈线
evolute surface[数] 渐屈面;渐屈面
mean evolute[数] 中点渐屈线
N（名词） a geometric curve that describes the locus of the centres of curvature of another curve (the involute). The tangents to the evolute are at right angles to the involute 渐屈线
ADJ（形容词） having the margins rolled outwards (边缘)反卷的 [biology]