该方法利用时间序列分析技术，对滚动轴承振动信号进行建模和谱分析，找出引起轴承振动的表面因素。
The vibration signal is modeled and analyzed by using the technique of time series analysis, and the main factors of the surface waviness which cause the ball bearing vibration are detected.
我们身体的化学物质告诉我们信任，我们便很快的决定信任其他人，这仅仅根据简单的表面因素，例如他们和我们的体型相似性。
Our body chemistry rewards us for trusting, and we quickly decide to trust others on the basis of simple surface cues such as their physical similarity to us.
因素包括好的热系数匹配和光滑的底层表面。
Factors include good thermal coefficient matching and smooth substrate surfaces.
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