From outside, the 2, 711 dark gray slabs form a gentle wave, ankle-high in some places, designed to give visitors a sense of instability, a loss of orientation.

从外观来看，纪念碑群由2711根长短不一的灰色碑柱组成，从远处望去，黑灰色的石碑如同一片波涛起伏的石林，让游客不由自主产生一种不稳定的、迷失方向的感觉。

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As the air descends in to the low point of the atmospheric wave, it touches the ocean surface, causing rough waters, visible here as long, dark vertical lines.

在空气下降到大气波的低点时，与海洋的表面相接触，形成了像漫长、黑暗垂直线条那样，明显的惊涛骇浪。

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Based on the characteristics of nonlinear negative index materials, we investigate the formation conditions and transmission characteristics of the chirped dark solitary wave in detail.

结合负折射介质的特性，详细研究了该啁啾暗孤波的形成条件和传输特性。

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She lets go of my hand and slips off into a dark prayer hall, giving me a wave.

CNN: From Our Correspondent: Far Braver Than I

There's barely time to understand what's happening before a flash of silver whale's skin breaks the surface, dips beneath a wave and plunges down to the dark fathoms of the North Atlantic.

BBC: An Icelandic journey to the centre of the earth

This means that normal matter collapses more slowly than dark matter, and that when it does so it has a tendency to oscillate, generating a sound wave.

ECONOMIST: Astronomy