midocean

In fact, he wrote his dissertation on the midocean ridge.

实际上，他的博士论文就是关于中央山脊的研究。

Because the tools and technology to locate those boxes in the depths of the midocean ridge were available for the first time.

因为深度可以到达中央山脊附近的技术和工具首次被使用。

Airlines could also simply stream the data from select flights, like those crossing rough terrain — the Himalayas, for example, or the midocean ridge.

航空公司也会挑选一些航班，让它们在穿过像喜马拉雅山脉或者中央海脊这种复杂地形时传输数据。