A sliding loop of rope or chain by which a running yard or gaff is connected to, while still being able to move vertically along, the mast.

装于帆桁中央两侧的索具：能滑动的绳圈或链子，用来把帆桁或缆索拴在船桅上，使之仍可以随意升降。

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A sliding loop of rope or chain by which a running yard or gaff is connected to, while still being able to move vertically along, the mast.

装于帆桁中央两侧的索具：能滑动的绳圈或链子，用来把帆桁或缆索拴在船桅上，使之仍可以随意升降。

youdao