As on the Moon, the extent of large impact cratering serves as an age indicator for the Martian surface.
和在月球的一样，大型撞击陨石坑的范围之广可以显示出火星表面的年龄。
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。
The impact of raindrops on the loose soil tends to transfer fine clay particles into the tiniest soil spaces, sealing them and producing a surface that allows very little water penetration.
降水往往会把细小的粘土颗粒转移到土壤的最微小的空隙中，使这些空隙变得封闭，从而形成了一种几乎不允许任何水分渗透下来的表层土壤。
As on the Moon, the extent of large impact cratering (i.e. craters too big to have been filled in by erosion since they were formed) serves as an age indicator for the Martian surface.
与月球上相同，那些巨大陨石坑的范围（例如，那些巨大到自形成后尚未被尘埃填满的陨石坑）标志着火星表面的年龄。
Unlike floating ice shelves which have little impact on sea level when they break up, the ice sheet is anchored to bedrock will blow the sea surface.
当浮动冰架破裂时，对海平面的影响很小；而与之不同的是，固定在基岩上的冰盖将会使海面炸毁。
The surface of Mars shows a wide range of geologic features, including huge volcanoes—the largest known in the solar system—and extensive impact cratering.
火星表面显示出广泛的地质特征，包括巨大的火山——太阳系中已知的最大的火山——和广阔的撞击坑。
The impact of rainfall upon the surface water and groundwater resources of the desert is greatly influenced by landforms.
降雨对于沙漠地表水和地下水资源的影响很大程度上取决于地形。
Deep Impact also found evidence of ice on the surface of the comet, not just inside it.
深度撞击项目组还发现了证据表明冰不仅仅存在于彗星内部，也存在于彗星表面。
Sulfate and soot also vary in their impact on temperature at Earth's surface.
硫化物和煤烟对地球表面的气温的影响，表现各异。
The team says this hints that the impact that created the moon may have happened later than previously thought or that a magma ocean did not cover the early moon's surface.
该研究团队说，这个发现提示了创造月球的碰撞可能发生在以前所设想时间之后，或者月球上岩浆海洋在早期并没有覆盖月球的表面。
Deimos has a smooth surface due to a blanket of fragmental rock or regolith, except for the most recent impact craters.
火卫二因碎屑岩或风华层的覆盖而表面光滑，除了最近的撞击坑。
The central crater could be formed by unusual layers below the surface, or from a lucky second impact.
陨坑中心可能是由于不同寻常的下层地质结构导致的，也有可能因为幸运的二次撞击而形成的。
In MESSENGER's view, the crater floor is seen to be filled with an intricate series of cracks, formed as the molten surface resulting from the impact cooled and contracted.
信使号太空船在德加陨石坑表面观测到因熔融冷却收缩所产生的斑驳裂痕。
Three spacecraft — India's Chandrayaan-1 lunar orbiter, NASA's Saturn-bound Cassini probe, and the agency's Deep Impact comet mission — all detected evidence of water molecules on the moon's surface.
三个太空飞行器——印度的Chandrayaan - 1月球轨道器、nasa飞向土星的Cassini探测器和该机构“深度撞击”彗星任务，都探测到了月球表面存在水分子的证据。
We have only scratched the surface of what could be realized with deeper scientific investigation into its design, operation and impact on society.
在Web设计、操作及它对社会的影响力方面我们仍然只知道一些浅层次的知识，缺乏对它的深入科学研究和了解。
Research about the negative impact of services like Groupon is starting to surface.
但是对提供这些优惠的商家来说又是什么情况呢？ 一些关于团购服务带来的负面影响的研究，正逐渐被披露出来。
It wasnt the flight through the air that alarmed me, or the actual impact with the river, but the sound of my body knifing through the surface.
让我受到惊吓的不是腾空而起，也不是与河水的撞击，而是我的身体划破水面的声音。
Ganymede, the largest moon in the solar system, has a dirty ice surface cut by fractures and peppered by impact craters.
这颗太阳系中最大的卫星，表面冰盖布满断层的切口和火山灰的粉末。
Magellan mapped more than 98 percent of the surface of Venus, and revealed the planet to be mostly covered by volcanic materials, dotted with a few impact craters.
用于探测金星的麦哲伦号绘制完成了金星表面98%的地形图，它传回的数据表明金星的大部分地区都被火山物质所覆盖，其间点缀着一些陨石坑。
Usually they protect the planetary surface from any harmful impact, but this one they let through and the reasoning was the awakening of the human masses.
通常，他们会保护星球表面不受任何有害的撞击，但这次他们没有阻止，因为想借此让人类觉醒。
Meteorite strike events have severe, great and long-term impact on strata structure of the earth surface.
历史上发生的陨击事件对地球表面岩层构造产生了极其严重、刻和长远的影响。
Hitting at 2 kilometers per second, the impact of the SMART-1 spacecraft was expected to leave a 3-meter-by-10-meter crater and send dust kilometers above the surface.
这架名为“智能1号”的探测飞船的撞月速度为每秒2公里。按照此速度，这次撞击预计会在月球表面留下一个直径3米、深10米的坑，而且会在月面激起几公里高的尘埃。
However, not all the fault surface and the source directly linked to the movement, they also may be due to seismic waves caused by secondary impact.
但并不是所有的地表断裂都直接与震源的运动相联系，它们也可能是由于地震波造成的次生影响。
If user combines the two in actual operating process, frequency of mechanical rapping can be reduced and the impact on heating surface welded junction of mechanical rapping position can be relieved.
如用户在实际运行过程中两者结合使用，可减少机械振打的频率，减轻对机械振打部位的受热面焊口的冲击。
A part surface can be infiltrated with a low melting point metal to increase density, strength, hardness, ductility and impact resistance.
零件表面能被低熔点金属渗透以增大密度、强度、硬度、延展性和抗冲击能力。
One obvious impact is the radical alteration of the land surface.
一种显而易见的影响是大地表面剧烈的改变。
One obvious impact is the radical alteration of the land surface.
一种显而易见的影响是大地表面剧烈的改变。
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