Jiǎn / chá / yuán / zhú / yī / jiǎn / chá / gāng / jià / shàng / de / hàn / diǎn / què / bǎo / lián / jiē / láo / gù

检查员逐一检查钢架上的焊点，确保连接牢固。

The inspector checked each welding point on the steel frame to ensure that the connections were secure.