1.
In the eternal night at the bottom of the great oceans, innumerable metal nodules are spread over the never-ending deep-sea plains.
在海洋深处的漫漫长夜中，在永无尽头的海底平原上，散落着难以计数的金属结核。
2.
We sometimes tend to think that the ocean bottom is made up of smooth plains.
我们往往误以为海底也由平坦的平原构成。
3.
Shellfish originated in Japan and were transplanted to beds in the waters of America's Pacific Coast.
蚝原始于日本，后被移殖到美国太平洋海岸的海底。
4.
The ocean bottom is made up of smooth plains.
洋底由平坦的平原构成。
5.
The platforms extend to a depth of over 100 feet under the sea.
平台深入海底100英尺。
6.
A flat - topped submarine mountain.
平顶海山一种在海底的平顶山岭
7.
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
8.
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
9.
A Study on Classification of Surficial Shallow-Water Sediments Based on Acoustical Phase-Plane Method;
基于相平面的声学方法浅海海底底质分类研究
10.
Analysis of the factors affecting submarine optical cable safety in the East China Sea
东海国际海底光缆故障原因分析研究
11.
Research of Acoustic Properties and In-situ Measurement Method of Seafloor Sediments;
海底底质声学性质及原位测量技术研究
12.
Seychelles-Mauritius Plateau
塞昔尔-模里西斯海底高原
13.
primitive tropical bottom-dwelling ray with a guitar-shaped body.
原始热带海底生鳐，身体形如吉它。
14.
In Situ Acoustic Experiment and Properties Study in Marine Sediments;
海底沉积物声学原位测试和特性研究
15.
In situ acoustic measurement technique of superficial marine sediments
海底表层沉积物声参数原位测量技术
16.
deflect-to-connect connection
海底管线与平台立管侧弯联接法
17.
ANALYSIS ON THE SULPHATE REDUCING BACTERIA IN THE SEDIMENT OF THE SEA AREA ON THE SOUTH-WEST SIDE BY HAINAN ISLAND
海南岛西南侧海域底质硫酸盐还原菌分析
18.
flattened disklike sea urchins that live on sandy bottoms.
栖息在多沙海底的身体扁平象盘子的海胆。