And all that activity creates seismic noise, which masks delicate signals from faraway small earthquakes.
所有这些活动产生出地震噪音，掩盖了远方小型地震的微弱信号。
| 单词 | Seismic noise |
| 释义 |
Seismic noise
原声例句
科学60秒-科学美国人 2020年7月合集 And all that activity creates seismic noise, which masks delicate signals from faraway small earthquakes. 所有这些活动产生出地震噪音，掩盖了远方小型地震的微弱信号。 当月 CNN 10 学生英语 2020年4月合集 The relative quietness has led to what scientists call less seismic noise and that has made it easier for them to detect events like small earthquakes. 相对的安静导致了科学家们口中减少的地震噪音，这使得他们更容易探测到像小地震这样的事件。
英语百科
Seismic noiseIn geology and other related disciplines, seismic noise is a generic name for a relatively persistent vibration of the ground, due to a multitude of causes, that is a non-interpretable or unwanted component of signals recorded by seismometers. Physically, seismic noise consists mostly of surface waves. Low frequency waves (below 1 Hz) are generally called microseisms; high frequency waves (above 1 Hz) are called microtremors. Its causes include nearby human activities (such as traffic or heavy machinery), winds and other atmospheric phenomena, and ocean waves. |
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