中文翻译与英英解释

热核弹，氢弹。

fusion:    n. 1.熔解，熔化；【物理学】(核)聚变，合成。 2. ...

bomb:    n. 1.【军事】弹，炸弹。 2.【地质学；地理学】火山 ...

a nuclear weapon that releases atomic energy by union of light (hydrogen) nuclei at high temperatures to form helium
同义词：hydrogen bomb, H-bomb, thermonuclear bomb,

例句与用法

The fusion of atomic nuclei releases tremendous amounts of energy which can be used in such things as the hydrogen or fusion bomb
原子核的融合释放出大量的能量，这些能被用于氢弹或原子弹之类的东西。