B. Throw the anchor at one side, at the same time use the deck housingstopper to stop anchor chain, And direct slowly lifting the anchor chain to examine the reliability of the housingstopper.
抛出一边锚，用甲板上的止链器停止锚链，并直接慢收锚链，检查止链器的可靠性。
2
The invented stopper is composed of slide oil cylinder, piston rod units and outer housing.