N-UNCOUNT （战争、惩罚犯罪等的）相称原则，恰当性 The principle of proportionality is the idea that an action should not be more severe than is necessary, especially in a war or when punishing someone for a crime. （战争、惩罚犯罪等的）相称原则，恰当性 [formal]
Nuclear weapons seem to violate the just war principle of proportionality.
核武器似乎违背了正义战争的罚当其罪原则。
He said there was a need for proportionality in sentencing.