shè / bèi / chū / xiàn / gù / zhàng / hòu / wéi / xiū / rén / yuán / mǎ / shàng / lái / zuò / wéi / bǎo

设备出现故障后，维修人员马上来做维保。

After the equipment malfunctioned, the repair staff came to perform maintenance right away.