由于月球没有大气层，它的表面不会受到侵蚀，所以它保留了早期历史的痕迹。
Because the Moon has no atmosphere, its surface is not subject to erosion, so it retains the marks of its early history.
图4：在这张蝴蝶星云的照片中，更新的照相机显示出了被恒星风侵蚀后的大气云中的细节局部处。
4：In the Butterfly Nebula the newcamera shows subtler detail in gas clouds being eroded by stellar wind.
今天，我们需要保护灵长类，是为了明天的森林能够吸收大气中的二氧碳，防止土壤侵蚀。
We need to protect primates today in order to have forests tomorrow that can absorb carbon dioxide from the atmosphere and prevent the erosion of soil.
随着地势抬升，山脉的侵蚀逐渐增强，它们吸收大气中的CO2并使温室效应降低。
As they grew higher they were exposed to increased weathering, which sucked CO2 out of the atmosphere and reduced the greenhouse effect.
人类出现，用硝烟燃烧大地，用大厦冲击山川，用汽车侵蚀大气。
The human comes, with smoke of fights burning the ground, with skyscrapers beating mountains, with cars erodes the air.
本标准使用的老化条件并不试图去模拟当地气候现象如大气污染、生物侵蚀，以及盐水老化导致的性能退化。
The exposure used in this practice is not intended to simulate the deterioration caused by localized weather phenomena such as atmospheric pollution, biological attack, and saltwater exposure.
许多有色金属所表现出来的抗大气、海水和化工产品侵蚀的性能是金属的另一种宝贵性质。
The resistance to the corroding effects of atmosphere, sea-water and chemicals shown by many of the non-ferrous metals is another of their valuable advantages.
酸雨和被污染的大气还会侵蚀建筑物的砖块和石造的部分，腐蚀钢制桥梁和铁轨的金属部分。
Acid rain and polluted air also damage the bricks and stonework of buildings, and corrode the metalwork of steel Bridges and railings.
但是，你一样必须要有磁场因为它保护了大气免受侵蚀和水的彻底消失。
But you also have to have a magnetic field, because that protects the atmosphere from erosion and the complete removal of water.
没有磁场，行星就会暴露于有害辐射下，它们的大气层也会被从恒星飘出的微粒所侵蚀。
Without a magnetic field, the planets would be bathed in harmful radiation, and their atmospheres would be eroded away by particles streaming from their stars.
在碳酸盐岩地区，流域侵蚀过程中硫酸是否参与，对于我们正确理解流域化学风化速率，以及流域侵蚀对大气co2的消耗和全球碳循环等都有重要的意义。
It is important to ascertain the role of sulfuric acid in carbonate weathering so as to understand the chemical weathering rate carbonate rocks, CO2 consumption and global carbon cycle.
铜能抗腐蚀。铜暴露在空气中形成的绿色物质称为铜绿。铜绿层能防止大气的进一步侵蚀。
Chlorophyll is a green substance in plants that absorbs energy from sunlight and helps them grow.
铜能抗腐蚀。铜暴露在空气中形成的绿色物质称为铜绿。铜绿层能防止大气的进一步侵蚀。
Chlorophyll is a green substance in plants that absorbs energy from sunlight and helps them grow.
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