But although the disposal of waste and the proliferation of nuclear weapons are profoundly important issues, the most severe problem may be the high and unpredictable cost of nuclear plants.
不过,尽管核废料处理和核武器扩散这些问题都极其重要,核电站那高昂而又不可控的成本才是最严重的问题。
Uranium and plutonium are most likely to find their way into weapons via the enrichment and reprocessing of fuel for nuclear power plants.
铀和钚很可能通过核电厂燃料的浓缩和再加工而流向武器制造。
Their hypothesis was that highly invasive species would have chemical weapons not found in native plants and which pests parasites and other plants would therefore not have evolved any resistance to.
他们推测入侵性强的物种拥有本土植物所不具备的化学武器,因此,本土的害虫、寄生虫和其它植物群对此化学武器都没有任何还击之力。
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