stiff bottom

Development of in situ marine sediment acoustic measurement technique;

海底底质声学性质原位测量技术研究

By the tests in situ of submarine soft soil in Qinzhou Gulf and sampling laboratory experiments, the article lays emphasis on introducing basic physical and mechanical characteristics such as plasticity index, lateral pressure index, lateral pressure coefficient and pore water pressure.

该文通过钦州湾海底软粘土原位测试、取样室内试验 ,重点介绍基本物理指标、可塑性指标、力学性质指标及侧压力、侧压力系数、孔隙水压力试验成果 ,孔隙水压力U、轴向应变ε1 、侧压力σ3及侧压力系数K随时间t变化的试验成果。

Production technique and methods of the seabed sediment thematic digital map;

海洋底质专题数字图的生成技术与方法

Study on the design of seabed sediment thematic maps' legend

海洋底质专题图图例设计初探的

Because of the complexity of sea s environment and the difficulty to gain data,the sea three-dimensional visual research always concentrates on the sea scene and the seabed terrain aspect,and the related visual research of seabed sediment should be strengthened.

海洋因其环境的复杂性和数据的难以获取性,其海洋三维可视化方面的研究多集中在海洋场景和海底地形方面,有关海洋底质的可视化研究有待加强。

Seabed Classification with Improved BP Neural Network

基于改进BP神经网络的海底底质分类

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

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

Research on Acoustical Detection of Seabed Sediment with Multi-beam Sonar

海底底质多波束声学方法探测技术研究

Seafloor Sediments Classification of Side-Scan Sonar Imagery in Fast Discrete Curvelet Transform Domain

曲波变换域侧扫声纳图像海底底质分类

Fusing and Classifying Multi-beam Sonar and Side-scan Sonar Data;

多波束和侧扫声纳数据融合及其在海底底质分类中的应用

geological sampling and observation at the sea bottom

海底地质取样和观测

The sea bed is rich in mineral.

海底有丰富的矿物质。

The floor of a body of water, especially the sea.

底，海底水体，尤其是海洋的底部

an underwater mountain rising above the ocean floor.

水底下的高出海底的山。

The minerals, calcium, and sulfur were at the bottom of the ocean.

矿物质、钙以及硫磺均存在于海洋底部。

Study on the Landslide of Gentle-slope Silty Seabed under Waves;

波浪导致粉质土缓坡海底滑动的研究

Heterogeneity study for submarine fan reservoir in Zarzaitine Oilfield,Algeria

Zarzaitine油田海底扇相储层非均质性研究

The quality cost control of C35 sprayed concrete in submarine tunnel

海底隧道C35喷射混凝土质量成本控制

Diapir structures and their significances on hydrocarbon accumulation in the offshore Bohai Bay Basin

渤海地区底辟构造及其油气地质意义

the ocean, forest, valley, cave floor

海洋的底、 森林的地面、 谷底、 洞底.

cause(a ship,etc)to go to the bottom of the sea

使（船等）沉到海底

an undersea cable [tunnel]

海底电缆 [隧道]