The bustle of interest in Congress, in turn, sparked a rare reaction within the opaque and ponderous offices of the V.A.

国会中的热闹气氛，反过来又在不透明和深思熟虑的退伍军人办公室中引发了罕见的反应。

Heat rushes through the detonation system and  sparks a fusion reaction in the bomb's gaseous fuel, which contains isotopes of hydrogen.

热量冲过爆炸系统， 在炸弹的气体燃料中引发聚变反应，其中含有氢同位素。