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Pulley Block Hook 滑轮群拉钩
lever pulley block 手板葫芦
hand pulley block 手动滑轮组; 手动滑车;
load pulley block 载重滑车架
electric pulley block 电动滑车
differential pulley block 翻译；差动滑车；差动滑块
pulley block 滑轮组
chain pulley block 链滑轮组
pulley block hoist 滑轮组吊车
single sheave pulley block 单轮滑车
single sheave iron pulley block 单轮铁滑车