The spatial arrangement of fissionable and nonfissionable materials in a nuclear reactor.
在
反应中可裂变
不可裂变
物
间排列 v.tr.
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Crash Course The most energetically favorable spatial arrangement of these bonds actually pushes the water molecules apart a bit, resulting in the volume of ice being 10% larger than the volume of water, which is really weird for solids and liquids.
键在能量上最有利的空间排列实际上将水
子推开一点，导致冰的体积比水的体积大 10%，
体和液体来说确实很奇怪。
