At present,the studies on the life-span prediction of rubber aging,in which physical aging mainly takes place,was in the early theoretical exploration stage.
在目前,温和条件下以物理老化为主的橡胶老化寿命预测研究在国内外均处于初期理论探讨阶段。
参考来源 - 橡胶老化寿命预测及压力条件下分子运动能力的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Some lesser effects of influence are chronic body pains, headaches, sudden signs of physical aging, irritability, and restless sleep.
一些较小影响作用的是慢性身体疼痛、头痛、身体老化的意外迹象、易怒、睡不好。
ABS samples of physical aging and strain aging were studied by universal tensile test machine and differential scanning calorimeter (DSC).
用万能拉伸实验机和差示扫描量热仪(DSC)对物理老化和应变老化的ABS试样进行研究。
The result of electron-microscopy investigation indicates that PES copolymer has formed a local order structure during the physical aging.
电镜对形态结构的分析进一步表明，聚醚砜共聚物经物理老化后其聚集态形成了某种局部有序结构。
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