conicadj.圆锥的；圆锥形的n.圆锥曲线；二次曲线conic four bar linkage圆锥四杆链系conic gymnadenia tuber手掌参conic interference fit圆锥过盈联结conic curve cryptography圆锥曲线密码体制conicity tension control锥度张力控制conicidental correlation叠合相关conic gymnadenia rhizome手参(中药)conic oiltight hatchcover圆锥形油密舱口盖conic direction relations锥形方向关系Conic linear optimization锥线性优化