volcanic process

• 火山作用

volcanic process的用法和样例：

例句

1. Researchers have looked for active volcanic or geothermal hot spots in nighttime infrared images but so far have seen none.
   研究人员尝试在夜间红外线影像中寻找由活跃的火山作用或地热所造成的热点，不过目前为止一无所获。
2. All the thermal waters from this ares do not belong to the direct products of modern volcanic action.
   新生代玄武岩分布地区的热水非均属于现代火山作用直接影响的产物。