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(micro sievert)，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。
Objective: To evaluate the diagnostic value and limit of anomalous muscle bundle of the right ventricle on X ray plain film.
目的：评价X线平片对右室异常肌束的诊断价值及限度。
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