the same period of time, and the levels in human bone.

还有人体骨骼中污染物的含量
They didn't know that.

人们并不知道这些
They didn't know that at the time they designed the bombs,

他们在设计炸弹时并不知道这一点
so that they didn't know that strontium-90 would compete with

他们不知道锶90会与钙竞争
calcium to be fixed within bone in the human body.

富集在人体骨骼内
But the Atomic Energy Commission created this clandestine operation

原子能委员会进行了一项秘密行动
where they collected dead bodies from 15,000 people around the world

通过收集全世界一万五千具尸体
and they sent them to labs in Chicago

将其运到位于芝加哥的实验室
and to Lamont Laboratory and to Columbia University,

还有拉蒙托实验室和哥伦比亚大学
where they were tested.

在那里进行检测
And every bone they tested found strontium-90 in it.

每块受测骨骼中都发现有锶-90
And it really woke them up.

这才使他们清醒过来