“任何公开的东西都是搜集的对象。”美国科学家联合会史蒂芬·阿福特古德说。
"Anything that is out in the open is fair game for collection, " said Steven Aftergood, of the Federation of American Scientists.
据美国科学家联合会的最新报告，MANPADS仍然是世界许多地区的威胁武器。
According to a recent report by the Federation of American Scientists, possession of MANPADS continues to be a threat in many parts of the world.
美国科学家联合会最近估计中国有200枚核弹头，与美国的近一万枚相比要少得多。
With about 200 nuclear warheads according to a recent estimate by the Federation of American Scientists, China's arsenal is far smaller than the United States' near 10,000.
美国科学家联合会监督小组的Ed Lyman说当前对地震和海啸危险的风险评估很可能已经过时。
Ed Lyman of the watchdog group Union of Concerned Scientists says current risk estimates for seismic and tsunami hazards may be outdated.
美国70%的抗生素——每年数千万镑的药物——用于动物饲料，按照美国科学家联合会的说法。
Some 70% of American antibiotics — tens of millions of pounds of drugs each year — is used in animal feed, according to the Union of Concerned Scientists.
据估计世界上大约23，300件核武器储存在14国家111处地点，依照美国科学家联合会（FAS）和自然资源保护协会（NRDC）做出的总结。
The world's approximately 23,300 nuclear weapons are stored at an estimated 111 locations in 14 countries, according to an overview produced by FAS and NRDC.
据估计世界上大约23，300件核武器储存在14国家111处地点，依照美国科学家联合会（FAS）和自然资源保护协会（NRDC）做出的总结。
The world's approximately 23,300 nuclear weapons are stored at an estimated 111 locations in 14 countries, according to an overview produced by FAS and NRDC.
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