当初它要么是被小行星撞击，其大部分表面爆裂进入太空，要么是因为热，年轻的太阳简单地汽化了其外层。
Either it was then hit by an asteroid which blasted much of its surface into space, or else the hot, young sun simply vaporised its outer layers.
表面爆炸时，一开始便有大量的泥土或水份被卷入火球中，并熔化或汽化。
In a surface burst large quantities of earth or water enter the fireball at an early stage and are fused or vaporized.
模拟结果表明，原锥压式调节阀在开度较小的情况下介质发生了严重的汽化现象，气化率达90%以上，介质速度高，以至于底板被冲击至击穿。
It can be concluded that the medium has high speed and serious vaporization phenomenon of the original cone structure in the case of small opening, the vapor volume fraction is more than 90%.
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