1·Conservationists say longline gear also damages corals and other important habitat on the sea bottom, threatening both the turtles and the fish.
环保人士称延绳钓也破坏了海底的珊瑚和对其它动植物来说很重要的海底栖息地，对鱼类和海龟都造成威胁。
2·Then, six miles below, you come to the sea bottom.
接着，在水下六英里，你来到了海底。
3·Because deep sea bottom trawling is a recent phenomenon, the damage that has been done is still limited.
因为深海海底拖网捕捞是最近才出现的一种现象，它所造成的损害还是有限的。
4·It is laid in the sea bottom and will rise to surface with its rocket propulsion.
它被储存在海底和将使用它的火箭发动机快速上浮到水面。
5·Seabed based monitoring platform system is a complex self contained measuring device operating at sea bottom, and can carry multiple ocean environment monitoring sensors.
海床基自动监测平台系统是携带众多海洋环境观测传感器在海底工作的、自容式综合测量装置。