片语
planar irregular curve平面非规则曲线
irregular curve fitting不规则曲线模拟
irregular excitation curve不规则激发曲线
irregular r curve云形曲线规
rubber irregular curve橡皮弯曲板
Irregular French curve曲线板
irregular curve fracture不规则弯曲裂缝
irregular plane curve weld不规则平面曲线焊接
irregular curve lines不规则曲线