Frictional resistance is proportional to the product of water density, area of contact with the water, square of water speed relative to the ship, and a friction coefficient.摩擦阻力与水密度、水接触面积、相对船体的水速度的平方、以及摩擦系数的乘积成正比。 选项: A:正确 B:错误 摩擦阻力 摩擦系数 发布时间:2024-04-12 10:44:34