Therefore, surface damage detection is important during overhaul and on components in service.

因此，在大修和部件维护时，检查表面损伤状况很有必要。

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So, it has important significance to study the surface damage by the image technology.

因此使用图像技术研究损伤具有十分重要的意义。

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So, it has important significance to study the surface damage by the image technology.

因此使用图像技术研究损伤具有十分重要的意义。

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