The vapor explosion discussed in this paper is defined as a kind of physical explosion that takes place when liquid is violently gasified under large superheat,causing the rapid increase of pressure.

• 拟讨论的蒸汽爆炸现象定义为液体因处于较大的过热度而急剧汽化,介质所处空间因大量气体得不到及时释放而使压力骤然升高引发的一种物理爆炸。