洪水在往日的耕地上形成了一个巨大的弧形湖泊。
Isolated from the newly shortened river, the older, longer route eventually forms an arc-shaped lake.更长的老河流和更短的新河道隔开了,最终就成了弧形。
These bearings can be separated into three, two pads are arc-shaped for deep groove ball rolling.此类轴承可以分离成三片,两个垫片都有供滚珠滚动的圆弧状深沟。