dry dock that can be submerged under a vessel and then raised
双语例句
With the ship's hydrostatical theory, the methods for calculating the vertical degree and the dynamics are given.The state equation of the floating dock is obtained. 以船舶静力学为依据，分析了船舶下排浮船坞时浮态的计算方法，给出了浮船坞纵倾及吃水动态力学方程，得出了可用于实时控制的浮船坞状态方程。
