Voltage is one important standard of power quality, steady voltage controlling is one important work of keeping safe and stable running of power system.

电压是电能质量的重要指标之一，电压稳定控制是驾驭电力系统安全稳定运行的重要工作之一。

youdao

The documents are in the safe keeping of our lawyers.

那些文件由我们的律师妥善保管着。

《牛津词典》

She had put her watch in her pocket for safe keeping.

为安全起见，她把手表放进了衣袋。

《牛津词典》

He talked about progress in education and other areas, but especially in keeping the country safe.

VOA: special.2009.01.17

Fourth, there's generally some arrangement, either for the publication of the treaty, or its deposition, its safe-keeping in some sort of shrine.

第四是一些笼统的安排，对条约的公布，或者废除，然后放在圣坛里，安全保管。

耶鲁公开课 - 旧约导论课程节选

Anybody who's envolved in this area has to know the president cares most about keeping the country safe.

所有有关的人,必须知道总统最重视的是,保卫国家安全。

普林斯顿公开课 - 国际座谈会课程节选

It is calling for lessons in all schools on internet safety with young people themselves sharing tips for keeping safe online and more advice for parents on how to talk to their children about the issue - just as they would about being wary of drugs or strangers.

BBC: Internet safety lessons urged for five-year-olds

Hoover, we realize, is obsessed with keeping America safe because he feels unsafe himself.

NEWYORKER: The Man in Charge

But what crosses the line between a board keeping executives safe and invading their privacy?

WSJ: Executive No-Fly Zone? When a CEO's Thrill-Seeking Rattles the Board