【单选题】The rotating unit of a spilt windlass consists of a____ with shaped snugs to grip the anchor cablea mooring drum for paying out or letting go of mooring wires and warp end for warping duties.
【简答题】v. to gain; to get for oneself by one's own work v. to calculate the average of sth. n. the state of being continuous adv. in an implied way adj. in the basic meaning of a word adj. belonging only to ...