The radiation dose can be expressed in units of Sievert (Sv).
辐射剂量可以西弗特(Sv)为单位。
Nakagawa said that an accumulated dose of 4 sievert kills 50% of those exposed within 60 days.
中川说，50%的4希弗剂量累积者将在60天内死亡。
Reportedly, levels of radiation have temporarily exceeded 1,000 micro sievert, which is twice the legal upper limit;
据报道，核辐射标准临时性的超过了1000单位的微西弗，这已经是法定标准限制的两倍了；
A single dose of 1,000 millisieverts — or one sievert — causes temporary radiation sickness such as nausea and vomiting.
单次摄入1000微西或1西弗会暂时引起一些辐射病如晕暄和呕吐。
Reportedly, levels of radiation have temporarily exceeded 1,000 micro sievert, which is twice the legal upper limit; but in many cases they have been little worse than an X-ray.
据报道，辐射量一度超过一千微西弗(microsievert)，这是额定上限的两倍；但在一般情况下，这并未超过一次X光检测的剂量。
Reportedly, levels of radiation have temporarily exceeded 1,000 micro sievert, which is twice the legal upper limit; but in many cases they have been little worse than an X-ray.
据报道，辐射量一度超过一千微西弗(microsievert)，这是额定上限的两倍；但在一般情况下，这并未超过一次X光检测的剂量。
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