通过对管束大量电子断口的观察分析，证明了断口为准解理断裂，具有河流花样的特征。

According to analysis result of tubes' cracks fracture observation, it proves that the fracture is quasi-cleavage fracture which is characterized by river pattern.

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通过对管束大量电子断口的观察分析，证明了断口为准解理断裂，具有河流花样的特征。

According to analysis result of tubes' cracks fracture observation, it proves that the fracture is quasi-cleavage fracture which is characterized by river pattern.

youdao