From the slipway

滑索───Sliding rope;从───from

An attendant attached one end of a rope to my harness and the other end to a sliding element in a metal track above my head.───一个参加者把一节绳索系在我的背带上，另一端系在我头顶金属轨道的滑块上。

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.───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。

They escaped by sliding down a rope.───他们是从一根绳子上滑下来逃走的。