wéi / xiū / rén / yuán / xiān / jiǎn / chá / diào / gān / shì / fǒu / wěn / gù / rán / hòu / cái / kāi / shǐ / diào / zhuāng / shè / bèi

维修人员先检查吊杆是否稳固，然后才开始吊装设备。

The maintenance staff first checked whether the boom was secure before lifting the equipment.