The yellow index of blends at different mixing time and thermal aging time increased obviously than that of pure polymer.
在不同混炼时间及热老化时间下，共混物的黄度指数相对纯聚合物有明显提高。
I also must seriously, go back in time, to no man is born, aging, everything in trying different flavor.
我也要认真，时光倒流，一去不返，笨鸟先飞没有人天生什么都会，都在尝试着不同味道。
By using this model, the aging properties of "o" type rubber sealing ring at different time was calculated and compared with the experiment results.
运用该模型计算了“O”型橡胶密封圈在不同时间下的老化性能，并与实验结果进行了比较。
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