As a ship moves through the water，it drags with it a body of water called the wake. The ratio of the wake speed to the ship’s speed is called（）.
- Apropeller velocity
- Bspeed of advance
- Cwake distribution
- Dwake fractio
问题
As a ship moves through the water，it d
参考解析：
分类：船舶操纵基本知识题库
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