前兆观测中的噪声问题，不仅存在于单点单手段的前兆观测中，而且还存在于有多点多手段的前兆台网中。

The problem of noise exists not only in a single observational point with single means but also in networks with many observational points and means.

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单点地震技术具有野外数据采集速度快，使用检波器数量少，仪器轻便，实时观测地质体弹性波变化规律和无需复杂的数据处理等优点；

The single-receiver seismic technique is demonstrated to be quicker on the data acquisition in the field, and with less using geophones than other seismic methods. The instruments…

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单点地震技术具有野外数据采集速度快，使用检波器数量少，仪器轻便，实时观测地质体弹性波变化规律和无需复杂的数据处理等优点；

The single-receiver seismic technique is demonstrated to be quicker on the data acquisition in the field, and with less using geophones than other seismic methods. The instruments…

youdao