emergency maintenance

例句：

1. 1. In case of an emergency, the company will send a team to the site immediately.
   万一发生紧急情况，公司会立即派遣团队到现场。
2. 2.The engineers are responsible for emergency maintenance during the construction process.
   工程师们在施工过程中负责紧急维修工作。
3. 3. The car's engine has a fault that needs urgent maintenance.
   这辆车的发动机有故障，需要紧急维修。