The knowledge can help us to find favourable hydrocarbon bearingband.
利用这些特征可以寻找含油气的有利地带。
2
The fault characteristic periodic signals of the rolling bearing are in low frequency band and often buried in the noise.
反映滚动轴承故障的特征周期信号处于较低频带内，容易被噪声淹没，难以检测。
3
Compared with traditional bearing fault diagnosis method, the approach proposed in this paper can detect the low frequency modulated components from high frequency band.