翻译下下面这段东西
问题描述：
翻译下下面这段东西
The ship at sea or lying in still water is being constantly subjected to a wide variety of stresses and strains, which result from the action of forces from outside and within the ship
答
这艘船在海上或在静止的水面上正不断受到各种各样的压力和拉力,而这些力是从船自己和外部产生的.