gravimetric network

例句：

1. 1.The gravimetric analysis of the sample was conducted using a mass spectrometer.
   使用质谱仪对样品进行了质量分析。
2. 2.The gravimetric method is used to measure the weight of materials.
   使用天平法测量材料的重量。
3. 3. Gravitational waves are a powerful tool for studying the universe.
   引力波是研究宇宙的强大工具。