他们认为每一个所谓的基础粒子实际有一个更小的，振动着的，一维循环的弦。
They propose that each so-called fundamental particle actually contains a tiny, vibrating, one-dimensional loop of string.
温度循环和随机振动是环境应力筛选最常用、最有效的筛选应力。
Temperature circulation and random vibration are the most usual and the most effective screening stress of Environment stress screening.
以叶片—轮盘结构为例，研究了循环周期结构的振动模态局部化问题。
By taking example for bladed disk assembly, the localization of vibration mode in cyclic periodic structures is studied.
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