But, according to the NRC, scientists believe that half a population would die within 30 days after a full-body dose of 3, 500 to 5, 000 millisieverts from a few minutes to hours.
但是根据NRC称，科学家相信半数人群，在几分钟到几小时中，全身接触到3500到5000毫西韦特辐射量之后会在30天内死亡。
But this compact flashlight can be charged easily and quickly (in as short as 30 minutes) and operate continuously up to 3 hours on a full charge.
但是，这个紧凑的手电筒可以充电方便快捷(在短短30分钟)和连续运作长达3小时，充满电。
A game full of "jump with fear" moments: the player will NEVER rest or feel safe throughout the 3 hours of gameplay.
游戏充满了“跳跃与恐惧”的时刻：玩家将永远不会休息或感到安全在整整个3个小时的游戏中。
Office workers work with full strength for no more than 3 hours a day, and the remaining time they're making contributions by increasing Internet flow.
上班族每天认真工作不超过三小时，其余时间是在为互联网贡献流量。
Office workers work with full strength for no more than 3 hours a day, and the remaining time they're making contributions by increasing Internet flow.
上班族每天认真工作不超过三小时，其余时间是在为互联网贡献流量。
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