差动滑车组 differential tackles ; differential block tackle ; differential purchase ; pulley block

四单轮滑车组 bell purchase

甲板滑车组 deck tackle

提升滑车组 hoisting block

起重滑车组 winding tackle ; hoisting tackle

大滑车组 luff tackle

吊锚滑车组 cat-tackle ; cat purchase ; anchor tackle ; tackle

双重复滑车组 two fold purchase