Of concern in the current situation is ionizing radiation, which is produced by spontaneously decaying heavy isotopes, such as iodine 131 and cesium 137.
目前情况下值得忧虑的是电离辐射,它由重同位素——如碘131和铯137——自发衰变而生成。
2
This type of surgery involves constantx-rays and can take a long time to complete, exposing the physician toharmful radiation and mandating that they wear a heavy protective vestwhile operating.