在海底

It was known that clean sandy isn't in extension all the while, and a significant amount of fines exist in alluvial and hydraulic deposit silty sand.

纯净砂在自然界中并不多见，而含细粒砂土却广泛分布，尤其是水力冲积填土和海底沉积土。

They are sedimentary rocks, rocks which were laid down by the action of water on the bed of the ocean.

含有石油的岩石也与海洋有关，这是一种沉积岩，是在海水的作用下沉积到海底的。

The two man went down seven miles to the bottoms of the Pacific Ocean inside a small steel ball called a 'bathyscaphe' to find out if there are any ocean currents or signs of life.

这两个人在一只叫&深海潜水器&的小钢球内，下沉七英里到达太平洋底部，为了探明那里是否有洋流和生命迹象，球的上端有一只特制的装满汽油的箱子，汽油被漫漫注入水中，使深海潜水器能够有足够的重量下沉以完成它的海底旅行。

At the bottom of the North Atlantic.

躺在北大西洋海底的坟墓里

Three centuries of concretions that cling to the barrel doubled the gun's weight, estimated at 320 pounds (145 kilograms) when raised from the ocean bottom.

经历了三个世纪，附着在炮管上的石化物使炮重了两倍。当从海底打捞上来时，这门炮的重量大概是320磅（145千克）。

With the appearance of a free span pipeline, its loading types and stress state will be changed. Especially when ocean currents pass through it, a periodical vortex shedding is often produced and induces vibration of the free span pipeline. This type of vibration contributes a lot to the fatigue failure of a free span pipeline.

管跨段的出现改变了海底管线所承受的载荷形式和应力状态，尤其是在海流作用下流经管跨时，常伴随着周期性的涡旋发放，引发管跨段的周期性振动，成为管跨段发生疲劳失效的主要因素之一。

In the 90's geoscientists both at home and abroad have applied the modern sophisticated methods and techniques in geoscientific research.

90年代，国内外地学工作者将现代科学的新方法、新技术应用于地球科学研究中，通过深海钻探、高温高压技术与地球物理手段等多种方法综合研究，致使在：地球的核-幔组分；CO2的起源、全球变化及其与成矿的关系；岩石圈的演化与缺氧事件、生物灭绝、海底扩张及成矿的相关性等诸多固体地球科学研究领域，均取得了若干最新的认识和重要进展。

A male peacock mantis shrimp plies the seafloor off Papua New Guinea.

雄性孔雀螳螂虾往返海底在巴布亚新几内亚之外。

The Titanic sank on 14 April 1912, after hitting an iceberg on its maiden voyage.

1912年4月14日，泰坦尼克号在它的首航就撞上了一座冰山，沉入海底。

In China's Yellow Sea and East China Sea seabed strata, is rich in peat resources, these peatlands are the ancient remains of a large number of terrestrial plants generated.

在我国的黄海和东海的海底地层中，蕴藏着丰富的泥炭资源，这些泥炭就是远古时大量陆地植物的遗骸生成的。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。