I am going to the doctor for my annual overhaul.
我要到医生那里作年度身体检查。
The banking and re-blowing operations in the annual overhaul of Masteel's No. 3 iron works are summarized and analyzed.
对马钢二铁总厂3号高炉大修封炉、开炉操作进行了分析总结。
Annual overhaul, the impeller blades have cavitation pitting damage, each must overhaul welding and grinding blades, but also labor-intensive maintenance personnel and poor working environment.
每年大修时，叶轮叶片有汽蚀破坏麻点，每次大修都要焊补和打磨叶片，而且维护人员劳动强度大、工作环境差。
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