The contaminated meat is coming from cattle that were fed rice straw contaminated with cesiumisotopes ejected by the disaster-crippled Fukushima No. 1 nuclear power plant.
生产受污染的牛肉的牛都被喂食了受污染稻草，这些稻草受在福岛第一核电站爆炸灾难中散发出铯同位素污染。
2
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。
3
And they still may need to retest for other radioactive isotopes that had been found in the seawater around the No. 2 reactor, including troubling quantities of cesium, barium, cobalt and lanthanum.