All factories should lay down safety regulations.

所有的工厂都应设立安全规章。

youdao

But I think this is rather an implausible suggestion because, of course, you could have these glorious views just by going up in the airplane and looking down from the safety of your airplane.

但我认为这是个似是而非的建议,因为，当然，你可能只是坐飞机向上飞,并安全地向下看,就会有这些迷人的视野。

耶鲁公开课 - 死亡课程节选

The Blow Out Preventer is off the well which is being controlled by a down hole safety valve.

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That's when the Tennessee Valley Authority, a government-owned corporation, resurrected a North Alabama reactor that had been shut down for safety reasons 22 years ago.

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The city council, which has owned the site since July 2010, said the top part of the factory's facade needed temporarily taking down for safety.

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