pulley block是什么意思

2023-12-28 10:52:17

pulley block

近义词：pulley，pulley-block，block，

Noun

a simple machine consisting of a wheel with a groove in which a rope can run to change the direction or point of application of a force applied to the rope

用作名词(n.)

Crevasse rescue is one of the more complicated mountaineering techniques, sometimes requiring pulley systems and multiple haul lines.裂缝救援是一项更副复杂一些的登山技术，有时候需要滑轮组和多组拖曳绳。