Flying through a cloud of volcanic ash poses a significant hazard to airlines.

飞过密布火山灰的云层，对航空公司构成了极大的威胁。

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The natural damming of rivers by landslides is a significant hazard in many areas. Landslide damming is particularity common in mountainous regions.

崩滑堵江事件在世界范围内，尤其在山区广泛存在。

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Therefore, the council is pleased to announce that the current system of garbage sites does not pose a significant health hazard.

因此，委员会很高兴地宣布现有的垃圾场系统不会对健康产生严重的健康危害。

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The alert, initially issued by Southwest Airlines and reissued Wednesday by the airline's pilot association, warned there was a "potentially significant hazard" concerning the instrument landing system's glide slope guidance signal for runway 23.

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"While it's true that pilots are safe, locked behind cockpit doors, these dangerous items still pose a significant hazard to the flight crew, other passengers, and even the integrity of the plane, " said Schumer.

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According to Edison documents, members of the public can request a hearing on the license amendment, but if NRC staff finds there is no significant hazard, the hearing can be held after the amendment is approved.

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