The vibration caused by the broken wire may make the transmission line system vibrate and the tower collapse, and even lead to fire accidents.

断线事故会引起整个输电系统的振荡，甚至导致输电塔倒塌及产生火灾等次生灾害。

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The plant has had a couple of alarming accidents, including a dramatic cooling tower collapse in August of 2007.

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The nuke has had its share of scary moments, including a cooling tower collapse, and, more recently, discoveries of leaks of the radioactive hydrogen isotope tritium.

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Alon and Blake Vaknin -- eight months pregnant -- watched the first tower collapse from their apartment a block away, then fled with their daughter Maia.

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