系泊索具
the ropes or chains that keep a boat from moving away from a particular place
A number of boats had broken loose from their moorings in the storm.
At one point, winds had reached 160mph, tearing boats from their moorings and tossing them around.
Ferocious winds had torn several boats from their moorings along Florida's west coast.
Boats that had broken free of their moorings were being swept along the river.
Moorings were all checked prior to the storm.
See also: mooring