1.向上弯曲,翘曲;弯度;中凸形
2.【航】(机翼的)弯曲,曲度弧
3.【船】梁拱,拱高
4.小船坞,筏渠
1.把(道路,甲板等)造成弧形[上弯形]
2.(梁,道路等)向上弯,翘起
1.a gradual curved slope from the center of a road down to its sides