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radioactive fallout 放射性微粒回降。

radioactive isotope

Shifting from big nuclear devices that burst at the earth ' s surface to smaller ones that detonate below ground could indeed reduce the radioactive fallout released by a factor of about 20 ? but it would by no means make the smaller munitions “ clean 把在地表引爆的大型核彈換成在地下引爆的小型核彈,或許真的能減少20 %的放射性落塵,但無論如何都不能說小型核彈乾凈。

The radioactive fallout caused abnormal births , thyroid problems , and other illnesses among rongelap ' s inhabitants 放射塵導致了朗格拉普島的居民出現了怪胎、甲亢等多種疾病。

Application of radioactive fallout cesium - 137 for soil erosion measurement 在土壤侵蝕研究中的應用