misc. monoterminal ; uniterminal
在20世纪的30年代，保罗·狄拉克甚至向我们提出了一个相信单磁极存在的比较充分的理由，他表示单极的存在可以反过来解释电子的存在。
In the 1930s, Paul Dirac gave us an even better reason to believe in monopoles, when he showed that their existence would in turn explain the existence of electrons.
它只是一个巧妙地通过衰变成锇和钽而假装成磁单极子的普通的铂原子核。
It was just a garden variety platinum nucleus pretending to be a monopole by cleverly decaying into osmium and tantalum.
第二种变化在于，美国所扮演的单极世界中唯一一极的角色正在不可避免地走向终结。
The second is that America's role as the single pole of a unipolar world is inevitably coming to an end.
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