苎麻纱线性能的一致性差，易发生非均匀断裂，不能充分发挥其性能优势。
Consistency in tensile strength of ramie yarn is poor, heterogeneous break of ramie yarn is easy occurred.
但对地基不均匀沉陷的适应能力较差，易断裂。
Yet, it can't be well adapted to the uneven sinking of foundation, easy to be broken.
确认螺栓机加工不当引起疲劳裂纹的萌生及扩展，加之螺栓受力不均匀加速了疲劳断裂过程。
The results showed that manufacturing defects of the bolt resulted in initiation and propagation of fatigue crack, and uneven loading of the bolt speeded up failure process of fatigue fracture.
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