lifting tackle
... block tackle正面抢截;拦截;阻挡;正面抢戳 lifting tackle起重滑车;提升滑轮;滑轮起吊设备 tackle block滑车组;复滑车;滑轮组 ...
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铜绿山矿某三铰拱屋架单轨吊梁结构体系，因技术改造增加设备简体重量，随意用滑轮组起吊检修，导致拱架上弦全截面贯通式开裂的结构事故。
Then the structural accident of total section drive-through type crack is caused in arch frame top chord, which is induced by hoisting and detection using pulley arbitrarily.
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