在开箱·搬运·安装时,请使用吊滑轮,起重机,叉式升运机等辅助设备。
When opening, carrying or installing it, please use block and tackle, chain block, fork lift truck or other assistant devices.
这些小孩子设计了一个滑轮,可以将东西吊进他们树上的房子。
The children contrived a pulley to lift things into their tree house.
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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