All that dark fiber may shed light on the Earth beneath our feet.

所有暗光纤都能照亮我们脚下的地球。

Dark fiber covers much of the country, and stretches across the ocean basins-which are hard to study using traditional seismometers.

暗光纤覆盖了全美大部分地区，并延伸至整个海洋盆地地区，而海洋盆地很难用传统的地震仪来研究。