海底的

A gulper eel can eat an animal larger than itself and accommodate it in an expandable stomach.

它能一口咽下比它还大的一只底动物并且调节它的胃变得扩大起来。

It is barely ten since systematic deep ocean bathymetry revealed the structure of rifts, fractures and trenches associated with sea floor spreading.

系统的深深度测量揭示了与底扩张有关的狭谷带、断裂带和沟的结构。