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- Convex plane curves 平面凸曲线
- He says that, to crown the introduction of plane curves, one should study curves on surfaces. 他说，为进一步发展平面曲线论，应该研究曲面上的曲线。
- Please tell me what the plane curve means. 请告诉我这条平面曲线是什么意思。
- He then treated the evolute of a plane curve. 然后他讨论了平面曲线的渐屈线。
- A plane curve formed by the locus of points equidistant from a fixed line and a fixed point not on the line. 抛物线到一固定直线和不在直线上某一固定点等距的点的轨迹所形成的平面曲线
- Something,such as a ring,shaped like such a plane curve. 圆形物，环状物形状类似于圆的东西，如戒指
- Symmetry of plane curve is important to function research. 平面曲线的对称性对于函数研究具有重要意义。
- Something, such as a ring, shaped like such a plane curve. 圆形物，环状物形状类似于圆的东西，如戒指
- A planar mechanism is one in which all particles describe plane curves in space and all these curves lie in parallel plances; i.e. the loci of all points are plane curves parallel to a single common plane. 在平面机构中,所有的点在空间描出的是平面曲线,并且所有这些曲线都在平行平面上,也就是说,所有点的轨迹都是与一个单一公共平面相平行的平面曲线。
- A plane curve everywhere equidistant from a given fixed point,the center. 圆，圆形从定点(圆心)等距离到任一点的平面曲线
- A plane curve everywhere equidistant from a given fixed point, the center. 圆，圆形从定点（圆心）等距离到任一点的平面曲线
- A Brief Proof of Perimeter Formula for Convex Plane Area 平面凸域周长公式的初等证明
- New methods for surveying the plane curves 平面曲线详测新法
- The plane climbed until it was clear of the clouds. 飞机爬升穿出了云层。
- A perpendicular, especially a perpendicular to a line tangent to a plane curve or to a plane tangent to a space curve. 正交一条垂直线，尤指一条相对一条平面曲线的切线垂直线或一条相对一条空间曲线的平面切线垂直线
- The flier is flying a new-type jet plane on trial. 飞行员正在驾驶一架新式喷气机作试验飞行。
- A plane curve formed by the intersection of a right circular cone and a plane parallel to an element of the cone. 抛物线一个直立圆锥和平行于该锥体中轴的平面相交形成的平面曲线
- He roughed in the curves he intended his pattern to take. 他粗略地勾出了他设想中图案的曲线。
- A plane curve formed by the locusof points equidistant from a fixed line and a fixed point not on the line. 抛物线到一固定直线和不在直线上某一固定点等距的点的轨迹所形成的平面曲线。
- The girl has as many curves as a scenic railway. 那女孩的曲线多如游乐场里的小铁路。
