octagon bar八角型钢;八角钢材;八角棒材
octagon kelly八角形方钻杆
octagon block八角形块体
Octagon House八角屋;八角楼;八角房屋
octagon hammer八角锤
octagon steel八角钢
Octagon Inc八方环球公司
N-COUNT（可数名词） An octagon is a shape that has eight straight sides. 八边形