periodic check-up

• 定期检查

periodic check-up的用法和样例：

例句

1. Check regularly that there is no external corrosion.
   定期检查以确定无外部腐蚀。
2. This pumping station is responsible for periodic checks of pumps in its administrative area.
   这个抽水站负责所辖范围内扬水设施的定期检查。