The perforated，elevated bottom of the chain locker，which prevents the chains from touching the main locker bottom and allows seepage water to flow to the drains，is called a（）.

The opening in the deck that leads the anchor cable out...

单项选择题The opening in the deck that leads the anchor cable outside the hull is the（）.

The opening in the deck beneath the anchor windlass tha...

单项选择题The opening in the deck beneath the anchor windlass that leads to the chain locker is the（）.

The machinery associated with heaving in and running ou...

单项选择题The machinery associated with heaving in and running out anchor chain is the（）.