周期性维护 meaning in English

periodic maintenance
periodicmaintenance

Check the sealing parts and transmission parts thoroughly . detect he sealing parts and the detecting data should be registered
对阀门周期性维护时应全面检查阀的各密封部位、传动部位，对各密封部位进行检测，对检测数据应记录在案。
Check the sealing parts and transmission parts thoroughly . detect the sealing parts and the detecting data should be registered
对阀门周期性维护时应全面检查阀的各密封部位、传动部位，对各密封部位应进行检测，对检测数据应记录在案。