Furthermore, the designs were covered with "desert varnish", a glaze that develops on rock surfaces over thousands of years of exposure to the elements.

此外，这些设计还覆盖有“沙漠清漆”，一种在岩石表面经过数千年在这些元素暴露下而形成的釉料。

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Ochoa showed the journalists a black plastic lid that covered a swimming pool-size cement container of pig feces to prevent exposure to the outside air.

奥乔亚向记者带领记者参观了一个黑色塑料盖，它覆盖着一座游泳池大小的水泥猪粪池，以防止其与外界空气接触。

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A longer exposure time means less sky covered but a shorter exposure time means we cannot catch smaller or more distant asteroids.

一个比较长的暴光时间意谓着复盖比较少的天空但是一个比较短的暴光时间意味着我们将不能够捕捉到更小或更远的小行星。

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Another UK bank spends a small fortune running required monthly reports on who is covered by deposit insurance and how large the exposure is.

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Brands lose exposure if the cars of the team they sponsor crash or are slow and are therefore not covered on TV as much as their rivals.

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