In the experiments of real-time holographic interferometry, some dark shadow areas appear among the interference fringes. The dark shadow areas play a very important role in the fracture process.

在实时全息干涉计量实验中，当试件负荷甚大时，干涉条纹中会出现一些阴影区，它们在试件破裂过程中起重要作用。

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At the same time,the Palestinians complain that Israel's separation wall at the entrance to Bethlehem casts a dark shadow over Christmas.

VOA: standard.2009.12.25

The dark shadow grows as the shark is pulled to the surface.

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Opposition spokeswoman Baroness Billingham said the "dark shadow" of corrupt betting threatened to undermine public confidence in the games.

BBC: Peer's warning over Olympics match-fixing

The last time England and Pakistan met in a test series, it fell under the long, dark shadow of the match-fixing antics of Salman Butt, Mohammad Asif and Mohammad Amir.

WSJ: Richard Lord: England, Pakistan In-Step Going Into Test; Cricket