英语释义
1. to curve upward in the middle
2. to arch slightly
3. to impart camber to
4. a slight convexity, arching, or curvature (as of a beam, deck, or road)
5. the convexity of the curve of an airfoil from the leading edge to the trailing edge
6. a setting of the wheels of an automotive vehicle closer together at the bottom than at the top
7. a slight downward curve from the middle to the sides of a surface (such as a road)