其端部斜面焊缝结构的抗疲劳强度比对接焊缝结构高，且不会发生一次性脆性破坏；
The fatigue resistance of the scarf weld in the end of the vessel is stronger than that of the butt weld.
零件表面质量对零件的耐磨性、抗疲劳强度、接触刚度等使用性能和寿命有很大的影响。
It is well known that surface quality of parts has great influence on the operational performance such as wearing quality, figure strength and contact stiffness.
零件表面质量对零件的耐磨性、抗疲劳强度、抗腐蚀性及接触刚度等使用性能以及寿命、可靠性都有很大的影响。
Surface quality of parts has great influence on the operational performance such as wearing quality, figure strength, corrosion resistance and contact stiffness.
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