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| 实际耗蚀率和陈废率 | |||
| 实际损耗率与废弃率 | |||
| 实际耗蚀率与陈废率 | |||
| 实际损耗率及废弃率; 实际耗损与陈旧率 | |||
| actual rate of wastage and obsolescence: 1 phrase in 1 subject |
| Economy | 1 |
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