The importance of implementing fast aging method for catalytic converter is firstly described in this paper, then the fast aging test equipment and test procedure we adopted are introduced.
本文首先阐述了实施催化转化器快速老化方法的意义和研究概况，然后简要介绍了快速老化试验设备和试验程序。
In this paper, the characteristics of natural and accelerated aging of rubber product is discussed. Also, the method and procedure of accelerated ageing tests and the test results are presented.
文中讨论了橡胶制品的自然老化与加速老化的特点，介绍了固体火箭发动机用橡胶制品加速老化试验的方法和步骤，并给出了试验结果与结论。
A method to detect vacuum degree using crystal resonator had been investigated, and resonant frequency of crystal resonator could be stabilized after two days aging test at least.
研究了一种利用晶振测量 真空度的方法，经试验，至少经两天老化后晶振的共振频率才能稳定；
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