a measure of explosive power (of an atomic weapon) equal to that of one million tons of TNT
one million tons
例句
用作名词 (n.)
Inspite of the various difficulties,Chengdao was develoed independantly into a megaton oilfield in a period as short as a few years. 工程设计完全依靠自己的力量,克服了种种困难,在短短的几年内就将埕岛建设成为一个百万吨级的油田。
经典引文
A single aircraft armed with binary warheads would kill as many civilians as a single megaton nuclear bomb.
出自:City Limits
Another British spy scandal of 'megaton proportions' was forecast yesterday.