卷筒止动件(33)沿所述一侧壁的壁面移动，可与嵌合于所述轴承部的卷筒支承件(27)卡合。
A reel stopper (33) moves along the wall surface of the one side wall and can engage with the reel receiver (27) fitted to the shaft receiving portion.
浮力和净荷是由适当深度率的浮力块提供的，来固定下面一个可移动水动盖。
Buoyancy and payload is provided by securing buoyancy blocks of the appropriate depth rating to the chassis below an easily removable hydrodynamic faring.
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