After two days of silence ground control teams received a signal that the spacecraft had put itself into an emergency standby mode.

经过两天的沉默，地面控制队接到信号的飞船把自己变成了紧急待命模式。

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Surveillance patrols and emergency standby crews shall be available throughout all pressure testing activities to patrol road crossings or other high profile points associated with a test section.

在整个试压过程当中，监督，巡逻和应急人员必须随时在场而对道路穿越和其他和试压段有联系的开阔地段进行巡逻。

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The emergency services were put on standby after a bomb warning.

接到炸弹警报后，各紧急救助部门进入待命状态。

《牛津词典》

And for those who can't bring in a sellable crop at all, there's always that old standby: federal emergency assistance for farmers who lose their crops to some unkindness of nature.

ECONOMIST: Farming

As for outside help, World Vision announced Sunday that it "has put its emergency response team in India on standby" to provide relief as requested.

CNN: 18 dead in India, Nepal after magnitude-6.9 quake

Dan Garrett, operations manager at the trust's Coxheath base near Maidstone, Kent, said staff used specialist software to predict where many emergency calls would come from, and vehicles would be on standby in those areas so crews could be in the right place at the right time.

BBC: Extra South East ambulance staff for New Year's Eve