Phone line usage jumps up during disasters because of people trying to confirm the safety of themselves or others. This can obstruct emergency phone calls, such as 110, 119.

灾难后电话的使用量会因人们确认自己或他人的安全而激增，使得拨打紧急电话，如110和119变得困难，所以请避免拨打不必要的电话。

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Also, attention should be paid, management methods, requirements and emergency response system application in the usage of oxygen in practice are described.

还就实际工作中的氧气使用管理的注意事项、管理方法、要求，以及应急系统的应用进行了阐述。

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They had lower rates of hospital admission and emergency room usage.

FORBES: Rebuttal To: Consumer Driven Healthcare Proponents Finally Proven Wrong

State officials urged consumers to reduce usage and scrambled to find more power sources after their declaration of a Stage Three emergency went into effect early Thursday evening.

CNN: California briefly declares Stage Three power emergency

California power officials had declared a Stage Two electrical emergency for the fourth day in a row on Thursday, asking residents to turn off Christmas lights during peak usage times.

CNN: California briefly declares Stage Three power emergency