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| Chinese National Standard Category: Water power engineering |
| English Title: | Information classification and coding of hydropower projects Part 12:Operation and maintenance |
| Chinese Title: | 水电工程信息分类与编码 第12部分：运行维护 |
| Standard No.: | NB/T 11564.12-2025 |
| Category No.: | P59 |
| Issued by: | China Energy Aminidstration |
| Issued on: | 2025-06-30 |
| Implemented on: | 2025-12-30 |
| Status: | to be valid |
| Superseded by: | |
| Superseded on: | |
| Abolished on: | |
| Superseding: | |
| Word Count: | words |
| Similar Standards: |
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