详细介绍了叶片的损坏情况，通过化学和物理分析方法分析了其损坏的原因。
This paper describes the blade damage in detail and analyzes its reason chemically and physically.
分析了水冷壁管损坏的原因，提出了改进的措施。
This paper analyzes the damage reason of the water wall tube, and puts …
分析了损坏原因，并提出了改进意见。
The reason of damage is analysed and the improving measure is presented.
分析了损坏原因，并提出了改进意见。
The reason of damage is analysed and the improving measure is presented.
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