回归再时效处理能够改善合金的腐蚀性能，使合金达到较好的综合性能。
Retrogression and re-ageing treatment can improve their corrosion performance, make the comprehensive properties of alloys better.
采用拉伸试验、电导率测试及电镜观察等方法，研究了重固溶制度、再时效制度对7175铝合金组织与性能的影响。
The effects of re ageing on microstructure and properties of 7175 aluminum were studied by means of SEM?
权利人和义务人就诉讼时效提出抗辩和再抗辩，则应当分别对其抗辩和再抗辩予以举证。
People with rights and obligations propose the defense and defense again of the limitation, they should be prove defense and defense again.
权利人和义务人就诉讼时效提出抗辩和再抗辩，则应当分别对其抗辩和再抗辩予以举证。
People with rights and obligations propose the defense and defense again of the limitation, they should be prove defense and defense again.
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