Most marine deposits from around the world contain either plankton or a lot of fern spores but not both together in the same layer.

世界上大多数的海洋沉积物不是含有浮游生物就是含有大量的蕨类孢子，但它们并不是同时存在于同一层中。

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You can create the two lines on the same layer.

你可以将两个线条放在同一个图层。

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The algebra sum of installing and uninstalling in the same layer is zero.

同一层柱加载与卸载的代数和为零。

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And so if we wanted to do this here, it's again, the same thing we're just now pulling back this layer and calling them char *s not actually strings.

如果我们想要在这里这样做，再次，我们撤销这一层,把它们叫做char，*s，实际上不是字符串。

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Aluminium does the same: the very top layer of Al becomes Al2O3.

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With the same knife, slice each layer horizontally in half.

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At the same time, all markets can't be different, there is a need to have a common layer so that you can use the same services such as stock tickers and e-mail notification in every device.

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