关紧舱门.升起锚钩.
Batten down the hatches . Brad , hoist the anchor .
采用锚钩吊梁加滑轮组的方法，分部件吊装桥机，可保障施工安全，节省费用。
By crampon , lifting beam and pulley block as well as hoisting and mounting the bridge crane in parts , ensures safety and economy for the construction .
锚钩