On centerboard sailboats, the centerboard functions like a keel to keep the boat from being blown sideways.
在使用活动龙骨的帆船上，活动龙骨的功能和固定龙骨一样，是防止船只被吹打得侧晃。
2
The keel of the boat which struck us came into the boat, on the right side. We could see the writing and details on the cargo ship.
这位工作人员还说，碰撞事故发生后客轮上的乘客可以看到撞到船上的货轮的龙骨。
3
All sailboats need a keel of board for this reason: the narrow, flat surface of the board or keel produces little drag when the boat moves forward but resists motion sideways.