ship velocity的用法和樣例：
例句
- This greatly reduced the speed of the ship, for there was a danger that if she traveled too quickly, this rudder would be torn away as well.
船員用備用的木板在船上趕製了一隻應急用的舵，並克服重重困難將舵安裝就位，這樣一來，大大降低了船的航速。 - The direction and point of action of the hydrodynamic force have a close correlation with the bevel angle from stern, and a little with the vessel velocity.
水動力的方向和水動力作用點的位置隨航速的改變而改變，但變化幅度不大，受尾斜角影響較大。
