eruptive stage

例句：

1. 1. The eruptive stage of a volcano is characterized by sudden and violent eruptions.
   火山的喷发阶段特点是突然而剧烈的喷发。
2. 2.During the eruptive stage, the magma rises to the surface and causes the ground to shake.
   在喷发阶段，岩浆上升到地表，引起地面震动。
3. 3. The eruptive stage is crucial for understanding the behavior of the Earth's crust during an earthquake.
   喷发阶段对于理解地震期间地壳的行为至关重要。