It is used to monitor the us nuclearstockpile, as well as conduct research into astronomy, genomics and climate change.
用于监测美国核储备，同时也用于天文、基因组和气候变化的研究。
2
Britain's nuclearstockpile has shrunk over the years and will now be reduced from "fewer than 200" to "fewer than 160" warheads.
英国核武库多年来一直在缩小，核弹头数量将会从“不到200枚”缩小到“不到160枚”。
3
The world’s nuclearstockpile has already been cut by more than half over the past 20 years—from its Cold War peak of about 70, 000 warheads to today’s 23, 000.