However, phytoplankton flourish only in surface waters where iron levels are sufficiently high.
然而，浮游植物只在铁含量足够高的地表水中繁殖。
Deserts contain large amounts of groundwater when compared to the amounts they hold in surface stores such as lakes and rivers.
与湖泊、河流等地表储存的地下水相比，沙漠中含有大量的地下水。
Also, in surface water, there is a weak acid, carbonic acid, not sulfuric acid, but carbonic acid that helps dissolve the rock.
另外，在地表水中存在一种弱酸，它是碳酸，而不是硫酸，而且是能帮助溶解岩石的碳酸。
The formation of sea ice causes the concentration of salt in surface waters to increase; less sea ice would mean a smaller increase in the concentration of salt.
海冰的形成导致表水中盐的浓度增加；海冰的减少意味着盐浓度的增加幅度较小。
The posterior-septal pathways which can be successfully ablated in the coronary vein have certain characteristics in surface electrocardigram.
在冠状静脉内消融成功的后间隔旁道具有一些特定的体表心电图特征。
The upright orientation is also the first step in surface detachment for bacteria.
这种直立的方位也是细菌脱离组织表面的第一步。
Altogether the painting is rich in surface textures, what art historians call facture.
放在一起这幅画作有了丰富的表面纹理，艺术史学家称之为制作法。
This is because the atmosphere does not have an iron grip on the carbon-dioxide level in surface waters.
这是由于大气不能完全支配在水平面上的二氧化碳浓度。
Home to the 13th-largest lake in the world (in surface area) as well as taiga forest and the Gobi desert.
世界第十三大湖泊的故乡(以表面积计算)，以及戈壁沙漠里的针叶林。
However, any increase in surface build-up of gritty dust and dirt should be a warning for taking protective measures.
然而，任何地表沙粒和土尘堆积物的增加，即应当是要采取保护性措施的一种警报。
To fill in these gaps in surface-based PM2.5 measurements, experts look toward satellites to provide a global perspective.
为了弥补地表PM2.5测量手段的缺失，环境学专家希望利用卫星来提供一个地球全景图。
Color differences are most likely due to regional changes in surface composition or the sizes and structures of the grains in the moon's icy soil.
颜色的差异很可能是因为卫星表面冻土的成分或者粒度与结构的区域性变化。
This legendary body of water is the country's second largest loch, slightly smaller in surface area, though deeper, than loch Lomond to its south.
传奇似的水域，这是这个国家的第二大湖，它比在它在南面的洛蒙德湖面积稍微小一些，可是却要深一些。
They "were associated with large and abrupt changes in surface climate," wrote Potsdam Institute climatologists Matthias Hofmann and Stefan Rahmstorf in pnas.
它们“与洋面气候出现大面积和突然的变化有关，”在《美国国家科学院学报》上发表文章的波茨坦研究所气候学家马蒂亚斯·霍夫曼和斯特凡·拉姆斯托夫认为。
While I think one can encourage more depth in the coursework for librarians, our expertise lies not in surface learning but in the synthesis of a variety of topics.
然而我认为某些人（or机构）可以鼓励图书馆员参与更深入的培训，我们的专业技能不是依赖于肤浅的学习，而是对各类不同主题的综合性把我。
The findings confirm a theory, developed by Godin and published in 2002-05, that tsunamis in the deep ocean can be detected remotely through changes in surface roughness.
相反，这项成果进一步证实了高丁他们在2002-2005期间形成并公开发表的理论，即认为海啸在开阔的深海传播期间，可以通过遥感方法对其造成的海水汹涌程度进行观测。
Much like the larger Emperors, King Penguins rely on Krill and small crustaceans for food, but an increase in surface ocean temperatures is reducing the supply in the winter months.
像更大的帝企鹅一样，王企鹅依靠海里的磷虾和贝壳类为生，但是不断上升的海洋表面温度减少了冬季的食物供给。
In 1664 Hooke observed a reddish spot on the surface of the planet.
1664年，胡克观察到了那颗行星表面的一个微红的斑点。
Once in the bloodstream, the bacteria adhere to the surface of the red cells.
细菌一进入血液里，就附着在红细胞表面上。
In some cases, the water table reaches Earth's surface, where it is expressed as rivers, lakes and marshes.
在某些情况下，地下水位到达地球表面，在那里以河流、湖泊和沼泽的形式表现出来。
The surface formed mostly in the last billion years, which makes it fresher and more recently active than any rocky planet other than earth.
它的表面大部分是在过去十亿年里形成的，使得它比地球以外的任何岩石行星都更新鲜活跃。
El Nino, Spanish for "the child", occurs when surface ocean waters in the southern Pacific become abnormally warm.
“ElNino（厄尔尼诺）”在西班牙语中是“孩子”的意思，当南太平洋表层海水异常变暖时，会出现厄尔尼诺现象。
Luna 16 landed on the lunar surface (in total darkness, no less), collected moon rocks, packed them up, and returned them to Earth.
“月球16号”降落在月球表面(完全是在黑暗中)，收集了月球岩石，打包，然后带回地球。
Hydrothermal vents are cracks in the Earth's surface that occur, the ones we are talking about here are found deep at the bottom of the ocean.
深海热泉是地球表面出现的裂缝，我们在这里提到的裂缝是在海底深处发现的。
We wanted to know if the length of time food is in contact with a contaminated surface affected the rate of transfer of bacteria to the food.
我们想知道食物与被污染的表面接触的时间长短是否会影响细菌转移到食物上的速度。
Plate movements are the surface expressions of motions in the mantle—the thick shell of rock that lies between Earth's crust and its metallic core.
板块运动是地幔运动的表面现象。地幔是位于地壳和金属内核之间的一层厚厚的岩石壳。
At the Earth's surface, these tempests can be detected by changes in the strength of the Earth's magnetic field.
在地球表面，可以通过改变地球磁场强度来检测这些风暴。
Groundwater commonly collects in stream drainages but may remain entirely beneath the surface of dry stream-beds in arid regions.
地下水通常聚集在河流流域，但在干旱地区，地下水也可能完全保留在干涸河床的表面之下。
Groundwater commonly collects in stream drainages but may remain entirely beneath the surface of dry stream-beds in arid regions.
地下水通常聚集在河流流域，但在干旱地区，地下水也可能完全保留在干涸河床的表面之下。
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