地震前地下水的化学变化最显著的翻译：Most significant chemical changes in groundwater before earthquake 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Chemical changes in groundwater before the earthquake the most significant

Most significant chemical changes in groundwater before earthquake

In front of the earthquake the ground water chemical change is most remarkable

Before the earthquake of groundwater chemistry the most significant

Most significant chemical changes in groundwater before earthquake