As a way of reconciling these two facts, scientists have hypothesized that nearly all of the oxygen being produced was taken up by iron on Earth's surface.
为了调和这两个事实，科学家们假设，几乎所有产生的氧气都被地球表面的铁吸收了。
The color changes are executed by two different kinds of cells in the octopus' skin, mainly by color cells on the skin's surface call chromatophores.
颜色的变化是由章鱼皮肤上的两种不同的细胞造成的，主要是皮肤表面的色素细胞。
Two electrodes that measure changes in the body's surface moisture are attached to the palms of your hands.
测量体表湿度变化的两个电极被连接到你的双掌上。
The Mariner spacecraft found that the surface of Mars, as well as that of its two moons, is pitted with impact craters formed by meteoroids falling in from space.
水手号宇宙飞船发现火星表面，还有它的两个卫星表面，都有由太空坠落的流星体造成的陨石坑。
Even though one or two degree Celsius rise in sea surface temperature for a relatively short amount of time can cause bleaching.
即使海面温度在短时间内升高一到两摄氏度，也可能会引起褪色。
During the pupa stage, they do not eat foods but do sit at the surface and breathe air through two small tubes.
在蛹阶段，它们不吃食物，但在水面游动时会靠两个细小的管道呼吸空气。
The latter two sources are limited to those few areas where surface water seeps down through underground faults or fractures to reach deep rocks heated by the recent activity of molten rock material.
后两种来源局限于少数区域，在这些区域，地表水通过地下断层或断裂往下渗透，从而接触到被近期的熔岩活动加热的深层岩石。
Just after vaccinia infects a cell, it expresses two viral proteins on the cell surface, which marks the cell as infected.
牛痘刚感染一个细胞后，就在细胞表面显示出两个病毒蛋白，这表明细胞已经感染。
Water in the sand between the two POTS evaporates through the surface of the larger pot, where drier outside air is moving.
两个罐子中间沙子的水分通过大罐的表面蒸发，使大罐外部的干燥空气开始流动。
This article covered a lot of ground in a short space, and frankly, it only scratched the surface of what these two outstanding libraries have to offer.
本文在有限的篇幅内涵盖了很大的范围，坦白地说，这仅仅触及到这两个重要库的表面。
For the light to be trapped in two dimensions, the object's surface needed to be smooth enough to cleanly reflect most of the light into the oil layer rather than scattering it at all angles.
要把光被捕获在两维的曲线状表面上时，要求物体表面非常平滑，才足以把大部分光线干净利落地反射进油层而不是分散在所有的各个角度上。
The origin of the color differences is not yet understood, but may be caused by differences in the surface composition between the two terrains.
产生颜色差异的原因还不清楚，有可能是两种地形表面成分的差异造成的。
Here you have three variables that you will reduce to two by figuring out what the surface is.
而空间中存在三个变量，需要了解曲面是怎样的，然后去掉一个变量。
Whenever you do a surface integral for flux you have two parts of the story.
每当做通量的曲面积分时，你要做两件事。
They are a series of surface piercings arranged up the back in two vertical columns.
由背部一组两列竖排表面穿环组成。
Two other miners stumbled to the surface hours after the blast.
其他2名矿工在爆炸几小时后蹒跚地走到了地面上。
Now, if I have two lines tangent to the surface, well, then together they determine for me the tangent plane to the surface. Let's try to see how that works.
现在，假设曲面上有两条相交切线，那么这两条切线可以确定一个切平面，我们来看看这个平面是怎么搞出来的。
Here we don't have a notion of orienting the surface other than by precisely choosing one of the two possible normal vectors.
这里我们并没有曲面定向的概念，能做的就是，从两个法向量中选出一个作为正方向。
In this initial process of keyword research, it can be easy to go one of two ways-just barely scratching the surface or going overboard and wasting time.
在对关键字进行研究的初始阶段，很容易步入以下两种误区——仅仅了解皮毛或是死钻牛角尖而浪费了时间。
During the pupa stage, they do not eat, but do sit at the surface and breath air through two small tubes.
在蛹阶段，不会摄取食物，但在水面游动时会摄取，靠两个细小的呼吸角呼吸。
But the principle of focusing rays through an aperture onto a two-dimensional surface remains the same.
但其原理通过孔径聚焦光线在一个二维表面是保持不变的。
To build their macro-sized quantum processors, the Yale researchers evaporated aluminum onto a sapphire surface to create two conductive spots a third of a millimeter across.
为了建造这颗宏观尺寸的量子处理器，耶鲁学者们将铝气化后附着在一块蓝宝石表面，形成两个跨距为三分之一毫米的传导点。
In just two flyby encounters, MESSENGER has already greatly increased our knowledge about Mercury's surface features.
先后两次飞越水星，“信使号”已经大大提高了我们对于水星表面特征的认知。
After an hour or two, a triangular fin sliced the surface of the water and circled the group.
约莫一两小时后，一尾三角鱼鳍划过水面，围着一群人转起了圈。
According to studies, it actually takes two to three weeks for a pimple to emerge on the surface of your skin.
据研究，事实上，一个小痘痘要花两到三周时间才会凸显在你的皮肤上。
Listing 10 shows the code snippet for the two user preferences that you want to surface later in the edit view.
清单10显示了您随后要在编辑视图中使用的两个用户首选项的代码片段。
Here, you integrate only over a two-dimensional surface, and here, only a one-dimensional curve.
在这儿，只是在一个二维曲面上做积分，这里是一维曲线。
For a while they sat, and Suchen remembered the splash of a fish breaking the surface of the water, and two egrets taking off with unhurried elegance, one after the other.
她们坐了一会儿，苏晨还记得有鱼跃出水面，两只白鹭一先一后飞起来，姿态优雅从容。
For a while they sat, and Suchen remembered the splash of a fish breaking the surface of the water, and two egrets taking off with unhurried elegance, one after the other.
她们坐了一会儿，苏晨还记得有鱼跃出水面，两只白鹭一先一后飞起来，姿态优雅从容。
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