名词
中文翻译：裂变产物沉降物
同义词：
['radioactive fallout', 'radioactive debris', 'nuclear fallout']
例句：
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1. The accident caused a significant amount of fission product fallout in the area.
事故导致该地区产生了大量裂变产物沉降物。
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2. The cleanup efforts were hampered by the presence of fission product fallout.
清理工作因裂变产物沉降物的阻碍而受阻。
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3. The scientists are studying the effects of fission product fallout on the environment.
科学家们正在研究裂变产物沉降物对环境的影响。