1.
The floor of a body of water, especially the sea.
底，海底水体，尤其是海洋的底部
2.
submarine ridge
海底山脉,海脊, 海岭
3.
an underwater mountain rising above the ocean floor.
水底下的高出海底的山。
4.
cause(a ship,etc)to go to the bottom of the sea
使（船等）沉到海底
5.
an undersea cable [tunnel]
海底电缆 [隧道]
6.
pipe line under the ocean
英吉利海峡海底输油管
7.
fibre optic submarine cable for Gulf States
海湾国家光纤海底电缆
8.
A telegram sent by submarine cable.
海底电报通过海底电缆拍发的电报
9.
A large elevated area of a sea floor.
海底斜坡大面积倾斜的海底
10.
Seamounts, underwater volcanoes, Rift Valley, the mid-ocean ridge,constitute a rich world of the ocean floor.
海底山脉、海底火山、裂谷、大洋中脊等等，构成了丰富的海底世界。
11.
the location of such regions with respect to other uses of the sea and seabed, such as fisheries and navigation;
海洋和海底的应用，如渔业和航海；
12.
Committee on the Peaceful Uses of the Seabed and the Ocean Floor Beyond the Limits of National Jurisdiction
公海海底海床和平利用特别委员会
13.
The bottom of the sea, as personified in songs and stories.
海神，海妖海底，在歌曲和故事中拟人化
14.
"Davy Jones:The bottom of the sea, as personified in songs and stories."
"海神,海妖:海底,在歌曲和故事中拟人化."
15.
ON A NEW SUBSPECIES OF BOS PRIMIGENIUS FOUND ON THE BOTTOM OF BOHAI SEA AND YELLOW SEA
记黄海、渤海海底发现的原始牛新亚种
16.
sludge (rich in organic matter) that accumulates at the bottom of lakes or oceans.
堆积在湖底或海底的软泥（富含有机物）。
17.
Seabed Classification with Improved BP Neural Network
基于改进BP神经网络的海底底质分类
18.
maintenance of submarine cables or pipelines
维护海底电缆或管线