N-COUNT [num NOUN] 兆吨，百万吨级(可用于计算核爆炸力，相当于100万吨梯恩梯炸药的爆炸威力) You can use megaton to refer to the power of a nuclear weapon. A one megaton bomb has the same power as one million tons of TNT. 兆吨，百万吨级(可用于计算核爆炸力，相当于100万吨梯恩梯炸药的爆炸威力)