double aging [冶] 双时效 ; 双级时效 ; 两种不同温度下的时效 ; 两段时效
double-stage aging treatment 双级时效
double stage aging 分级时效工艺
Observing and analyzing of TEM show that 7090/SiCp precipitate G. P. area andη′phase with single aging, intensified effect is in best condition. the strength decrease obviously with double aging because precipitated phases become coarse and precipitateηphase when temperature increase.
TEM观察及分析结果表明,7090/SiCp复合材料经单级时效处理后的组织为G.P.区和η′相,强化效果最佳。 经双级时效处理时,由于温度升高,使析出相粗化并析出了η相,强度明显下降。
参考来源 - 热处理工艺对7090/SiCp复合材料组织和性能的影响·2,447,543篇论文数据，部分数据来源于NoteExpress
The fumes from the kitchen, the double burden of working families, so that a woman premature aging.
厨房的油烟，工作家庭的双重负担，让女人过早地衰老。
Production processing of wire used in bicycle was introduced. The double aging institution has been determined. In addition the economic profits were analyzed.
简述自行车铝合金辐条条母线的生产工艺。详细介绍了铝合金条母线材双级时效制度的确定方法，并进行了经济、社会效益分析。
Cellular aging is linked to deficiencies in efficient repair of DNA double strand breaks and authentic genome maintenance at the chromatin level.
细胞衰老与DNA双螺旋断裂后不能有效修复并在染色质水平维持可靠的基因组有关。
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