Milne-Shaw seismograph

例句：

1. 1.The seismograph was used to monitor earthquakes in the area.
   地震仪被用来监测该地区的地震。
2. 2. The seismograph recorded the magnitude of the earthquake.
   地震仪记录了地震的震级。
3. 3.The seismograph helped scientists better understand the causes of earthquakes.
   地震仪帮助科学家更好地理解地震的原因。