The transmission factor describes the gradual opening of a fission channel as the energy approaches the fission barrier. 透射因子描述了当能量趋近于裂变势垒时裂变逐渐地开放。
On the average, in weapons of this type, roughly equal amounts of explosive energy result from fission and from fusion. 平均说来,在这类武器中,由裂变和由骤变所产生的爆炸能量大致相等。
Nuclear fission releases tremendous amounts of energy. 核裂变释放出巨大的能量。
One of the methods to set free the energy locked in such substances as uranium is known as nuclear fission. 一种把储存在象铀这样的物质里面的能量释放出来的方法被称为核裂变。