These areas have particularly low concentrations of iron, and oceanographers hypothesize that this shortage of iron prevents plankton from thriving.
这些地区的铁含量特别低，海洋学家推测，铁的缺乏阻碍了浮游生物的繁殖。
This idea was modified in the late twentieth century, when geologists and oceanographers examining oceanic sediment found fossil evidence of warming and cooling of the oceans.
在20世纪后期，地质学家和海洋学家在研究海洋沉积物时发现了能够证明海洋变暖和变冷的化石，并修正了这一观点。
When oceanographers study these samples, they can see changes in the carbon cycle during the PETM.
当海洋学家研究这些样本时，他们可以看到在古新世-始新世极热时期碳循环的改变。
Neither atmospheric scientists nor oceanographers can adequately account for the speed of the changes.
大气科学家和海洋学家都不能很好地解释变化的速度。
For many years oceanographers dismissed sailors' reports of rogue waves much as they did stories of mermaids.
多年来，海洋学家对待海员们关于超级巨浪的报道就像对待美人鱼的故事一样置之不理。
The oceanographers, when they go and look at these hydrothermal vents, they're teeming with life.
当海洋学家们研究这些深海热泉时发现，那里有富饶的生命。
Some oceanographers have started to use another sort of underwater vehicle that is capable of much greater endurance.
一些海洋学家已经开始使用另一种更具持续力的水下航行器。
There is a close correlation between sea level slope and height datum, in which geodesylists and oceanographers are interested.
海面倾斜与高程基准密切相关，它已经受到大地测量学界和海洋学界的重视。
With the "Digital Ocean" strategy being put forward, many oceanographers have been focusing on auto-extraction of ocean information.
随着“数字海洋”战略的提出，海洋信息的自动提取已逐渐引起国内外海洋学家的兴趣。
The ship then sends the data via high-speed fiber-optic lines to a series of command centers, where oceanographers can analyze results in real time.
在控制中心，海洋学家们可以实时分析数据结果。
More than 400 ocean dead zones - areas so low in oxygen that sea life cannot survive - have been reported by oceanographers around the world between 2000 and 2008.
海洋死区是指那些氧气含量低到海洋生物无法生存的地区，从2000年至2008年世界各地海洋学家的报告显示，海洋死区已超过400个。
When French investigators began calling oceanographers and deep-sea adventurers in a desperate effort to reach the bottom, the name of one organization kept coming up.
当法国调查人员开始寻求海洋学家和深海探险者的帮助、为探测海底做出一次最后尝试时，一个机构的名字被不断提起。
Significant progress in the establishment of a unified Marine sediment dynamics has been made through the joint effort by physical oceanographers, coastal engineers and Marine geologists.
海洋沉积动力学正在打破传统，走向海洋工程学、物理海洋学和地质学的联合，共同建立一门综合性的、统一的沉积动力学。
The excitement arose because oceanographers had started to find these mineral-rich deposits on the network of submerged mountain ranges that run along the seabed between continents (see map).
令人喜悦的是，在大陆之间横卧在海底的山系里，海洋学家开始找到一些富含这些矿物的矿床（见地图）。
On a routine expedition in 1987, oceanographers in the submersible Alvin were mapping the typically barren, nutrient-poor seafloor in the Santa Catalina Basin, off the shore of southern California.
在1987年的一次例行探险中，一群海洋学家在南加州海岸外，通过潜水器阿尔文潜入海底，为圣卡塔利娜盆地描绘那典型的贫瘠、荒芜的海底地貌。
Oceanographers once tracked waves.
有一次海洋学家跟踪一些波浪。
Oceanographers use the same principles to explore the ocean floor and the land under it.
海洋学家利用同样的原理去勘探海底及其下面的地面。
Oceanographers use the same principles to explore the ocean floor and the land under it.
海洋学家利用同样的原理去勘探海底及其下面的地面。
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